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Question:
There are five numbers 10, 11, 12, 13, and 14. What is the product of the 3rd smallest number and the 2nd smallest number?
Answer:
The five numbers in ascending order are: 10, 11, 12, 13, and 14.
The 3rd smallest number is 12.
The 2nd smallest number is 11.
The product of the 3rd smallest number (12) and t... |
Question:
There are 5 different interviewers. Find the number of cases in which two of them pass.
Answer:
To find the number of cases in which two of the five interviewers pass, we need to calculate the number of combinations of two interviewers from the group of five. This is a combination problem because the order i... |
Question:
How many faces does a tetrahedron have?
Answer:
A tetrahedron has four faces. Each face is a triangle. |
Question:
When I measured the length of one side of a square-shaped blackboard, it was 6 centimeters (cm). What is the area of this blackboard in square centimeters (cm2)?
Answer:
The area of a square can be calculated by squaring the length of one of its sides. Since the length of one side of the blackboard is 6 cm, ... |
Question:
If the number of ways to get from point A to point B is 3 and from point B to point C is 4, find how many possible ways are there to get from point A to point C via point B.
Answer:
To get from point A to point C via point B, you must first go from A to B and then from B to C. Since there are 3 ways to go fr... |
Question:
Jae-woong and Dong-hun started at the same place in opposite directions on a kickboard on a 3-kilometer (km)-long playground. If Jaewoong rides a kickboard at a speed of 100 meters (m) per minute and Donghun rides a kickboard at a speed of 150 meters (m) per minute, find out how many minutes later they will m... |
Question:
Suzy has a regular hexagon shaped piece of colored paper. The length of one side of this regular hexagon is 5 centimeters (cm). Find the circumference of this colored paper.
Answer:
A regular hexagon has six equal sides. To find the circumference (perimeter) of the hexagon, we simply multiply the length of o... |
Question:
You want to create a three-digit number using each 0, 2, 4, and 6 only once. Find the product of the largest possible number and the smallest possible number.
Answer:
To create the largest possible three-digit number using the digits 0, 2, 4, and 6, we need to place the largest digit in the hundreds place, t... |
Question:
When Woo-jun's age is 1 year less than 1/4 of his mother's age and his mother's age is 5 years less than 5 times Woo-jun's age, how old is Woo-jun now?
Answer:
Let's denote Woo-jun's age as W and his mother's age as M.
According to the first condition:
W = (1/4)M - 1 ...(1)
According to the second conditi... |
Question:
For the natural numbers A, B, and C, when A is divided by 8, the quotient is B and the remainder is C. If the quotient and the remainder are equal, find the largest number of A.
Answer:
Let's denote A as the natural number we are looking for, B as the quotient when A is divided by 8, and C as the remainder. ... |
Question:
A pyramid has N bases. How much is N?
Answer:
A pyramid typically has only one base. It is a three-dimensional geometric shape with a polygonal base and triangular faces that converge at a single point called the apex. The most common pyramid, often seen in Egypt, has a square base and four triangular faces.... |
Question:
What is the volume, in cubic centimeters (cm3), of a cube with an edge of 7 centimeters (cm)?
Answer:
The volume of a cube is calculated by raising the length of one of its edges to the power of three (since a cube has all sides of equal length).
So, if the edge of the cube is 7 cm, the volume (V) is:
V =... |
Question:
The number of flowers planted in each column is the same. When a rose is planted in the 9th column from the left, the 7th row from the front, the 16th row from the back, and the 13th column from the right, how many flowers are planted?
Answer:
To find the total number of flowers planted, we need to determine... |
Question:
A box measuring 1 meter (m) in width, length, and height is stored on a rectangular piece of land measuring 44 meters (m) wide and 35 meters (m) long. If you stacked boxes in 7 layers on the first day and boxes in 3 layers on the second day, how many boxes did you get in two days?
Answer:
First, let's calcul... |
Question:
If you cut and used 105 millimeters (mm) from a 23.3 centimeter (cm) wire and another 4.6 centimeters (cm) the next day, how many millimeters (mm) of wire are left?
Answer:
First, we need to convert the length of the wire from centimeters to millimeters because the amount cut the first day is given in millim... |
Question:
What is the second largest odd number from 1 to 9?
Answer:
The odd numbers from 1 to 9 are 1, 3, 5, 7, and 9. The largest odd number in this range is 9. The second largest odd number is 7. |
Question:
There are 60 consecutive natural numbers between 200 and this number. If the number is less than 200, how many numbers between 200 and the number are divisible by 2 and 3?
Answer:
If there are 60 consecutive natural numbers between 200 and the number, and the number is less than 200, then we are looking at t... |
Question:
When square-shaped tiles were laid in order to form a large square, 36 tiles were not used. I increased the width and length of the large square by one line each, and there were still 3 residual tiles left. How many tiles did I have?
Answer:
Let's denote the side of the initial large square as \( n \) tiles.... |
Question:
Jimin has 41 pieces of colored paper, and Seokjin has 1 less than Jimin. How many pieces of colored paper does Seokjin have?
Answer:
If Seokjin has 1 less piece of colored paper than Jimin, and Jimin has 41 pieces, then Seokjin has 41 - 1 = 40 pieces of colored paper. |
Question:
Mijeong's cuboid box has a bottom area of 14 square centimeters (cm2) and a height of 13 centimeters (cm). Find the volume of this box.
Answer:
The volume of a cuboid (also known as a rectangular prism) is calculated by multiplying the area of the base by the height of the cuboid.
Given that the bottom are... |
Question:
There is a box in the shape of a cuboid measuring 30 centimeters (cm) wide, 20 centimeters (cm) long, and 5 centimeters (cm) high. If this box contains all the chocolates in the shape of a cuboid measuring 6 centimeters (cm) wide, 4 centimeters (cm) long, and 1 cm (cm high) without leaving any space, how many... |
Question:
I put 30 tangerines, each weighing 0.36 kilograms (kg), in a gift box. At this moment, the weight of the gift box was 11.26 kilograms (kg). How many kilograms (kg) does an empty gift box weigh?
Answer:
To find the weight of the empty gift box, we first need to calculate the total weight of the tangerines.
T... |
Question:
While Yoongi was subtracting 57 from the two-digit number, he mistook the two-digit units digit 9 for 6. When the difference obtained by Yoongi is 39, what is the two-digit number?
Answer:
Let's denote the two-digit number that Yoongi is subtracting from as \(XY\), where \(X\) is the tens digit and \(Y\) is ... |
Question:
(A) classmates planted 8 trees. (B) classmates planted 7 trees. How many trees did the students in class (A) and (B) plant?
Answer:
The students in class (A) planted 8 trees, and the students in class (B) planted 7 trees. To find the total number of trees planted by both classes, you add the number of trees ... |
Question:
The area of a trapezoid with an upper side that is 3.4 centimeters (cm) longer than the lower side and with a height of 5.2 centimeters (cm) is 100.62 square centimeters (cm2). How many centimeters (cm) is the length of the lower side?
Answer:
Let's denote the length of the lower side of the trapezoid as \( ... |
Question:
How many edges does a regular icosahedron have?
Answer:
A regular icosahedron has 30 edges. |
Question:
You want to install 24 power poles with equal space between two poles on one side of a 239.66 meters (m) long road. If you are to install one at the beginning and one at the end of the road, how long should the distance between the power poles be in meters (m)?
Answer:
If you are installing 24 power poles al... |
Question:
When a number A is divided by 8, the quotient and remainder are B and C, respectively. A, B, and C are natural numbers. If the quotient and the remainder are equal, find the largest number of A.
Answer:
If the quotient B and the remainder C are equal, we can denote them both as x (where x is a natural number... |
Question:
The average height of 11 members of the Yeonju's line is 145.7 centimeters (cm). However, if the heights of the two students are equal to 142.1 centimeters (cm), find the average of the heights of the other students.
Answer:
To find the average height of the other students, we first need to calculate the tot... |
Question:
How many circles with a radius of 4 centimeters (cm) can be drawn in a rectangle with a width of 24 centimeters (cm) and a length of 8 centimeters (cm) without overlapping?
Answer:
To determine how many circles with a radius of 4 cm can fit in a rectangle with dimensions 24 cm by 8 cm without overlapping, we... |
Question:
How many three-digit numbers can be made by using all three numbers 1, 2, and 3 once?
Answer:
To form a three-digit number using the numbers 1, 2, and 3, each digit can be used only once. Therefore, we have three choices for the first digit (1, 2, or 3), two choices for the second digit (the remaining two nu... |
Question:
There are five shapes: triangular-prism, quadrangular-prism, triangular-pyramid, quadrangular-pyramid, and square-frustum. If each shape's face is colored with a different color, which shape needs the fewest colors?
Answer:
To determine which shape needs the fewest colors, we need to consider the number of f... |
Question:
Write the largest three-digit number that can be formed by using 2, 6, and 9 only once.
Answer:
The largest three-digit number that can be formed by using the digits 2, 6, and 9 only once is 962. |
Question:
What number must go in A to make A7B+23=695?
Answer:
To solve for A, we need to set up the equation based on the given information:
A7B + 23 = 695
First, let's subtract 23 from both sides of the equation to isolate A7B:
A7B = 695 - 23
A7B = 672
Now we have a three-digit number A7B that equals 672. Since ... |
Question:
When a number is divided by 7, the quotient is 13 and the remainder is 1. Add 9 to this number. Then, divide it by 8 to find the sum of the quotient and remainder.
Answer:
First, let's find the original number using the information given about the division by 7.
When a number is divided by 7 and the quotien... |
Question:
There are three tapes: tapes A, B, and C. The length of the tape A is 35 centimeters (cm). The length of tape A is half the length of tape B, and the length of tape C is 21 centimeters (cm) less than twice the length of tape A. What is the sum of the lengths of tape B and tape C in centimeters (cm)?
Answer:
... |
Question:
What is the sum of numbers which are greater than or equal to 1.1 among five numbers 1.4, 9/10, 1.2, 0.5, and 13/10.
Answer:
First, let's identify the numbers which are greater than or equal to 1.1:
1.4 is greater than 1.1.
9/10 (which is 0.9) is less than 1.1.
1.2 is greater than 1.1.
0.5 is less than 1.1.... |
Question:
Seonghyeon and Jisoo are standing on the playground. Seonghyeon ran 200 meters (m) in the direction of Ji-soo and then ran 1000 meters (m) in the opposite direction. If the distance between Seonghyeon and Jisoo is now 2000 meters (m), find the distance in meters (m) between Seonghyeon and Jisoo before Seonghy... |
Question:
There are 950 stones. If there are 150 more white stones than black stones, how many black stones are there?
Answer:
Let's denote the number of black stones as B and the number of white stones as W.
According to the problem, there are 150 more white stones than black stones, so we can write this as:
W = B +... |
Question:
There are 15 chickens - 3 are hens and the rest are roosters. Chicks are 4 fewer than roosters. How many chicks do you have?
Answer:
Let's start by figuring out how many roosters there are. Since there are 15 chickens in total and 3 of them are hens, we subtract the hens from the total number of chickens to ... |
Question:
Each box contains 3 red balls and 5 blue balls. When Jungkook has 2 boxes, how many red balls does Jungkook have?
Answer:
If each box contains 3 red balls and Jungkook has 2 boxes, then Jungkook has:
3 red balls/box * 2 boxes = 6 red balls
Jungkook has 6 red balls. |
Question:
There are four numbers 10, 11, 12, and 13. What is the value of difference between the 3rd smallest number and the 2nd smallest number?
Answer:
The four numbers are 10, 11, 12, and 13.
The smallest number is 10.
The 2nd smallest number is 11.
The 3rd smallest number is 12.
The difference between the 3rd sm... |
Question:
Junsu drank 0.331 liters (L) of milk, while Jimin drank 218 milliliters (㎖). Who drank more milk?
Answer:
To compare who drank more milk, we need to convert the volumes to the same unit. We can either convert liters to milliliters or milliliters to liters. Since there are 1000 milliliters in a liter, we can ... |
Question:
There is one ID photo each of Seokjin, Taehyung, Namjoon, Yoojeong, and Yuna. In how many ways can these pictures be arranged in a row?
Answer:
To determine the number of ways the ID photos can be arranged in a row, we can use the concept of permutations. Since we have 5 unique photos (Seokjin, Taehyung, Nam... |
Question:
I was supposed to subtract 36 from a particular number, but mistakenly subtracted 63, and as a result, got 8 as an answer. What should be the answer to the correct calculation?
Answer:
If you mistakenly subtracted 63 instead of 36 from a number and got 8, we can first find the number you started with by reve... |
Question:
On a farm of 12 cows and 34 pigs, a few cows and three times as many pigs were sold on the market. When there are 30 remaining cows and pigs, how many cows sold?
Answer:
Let's denote the number of cows sold as \( C \) and the number of pigs sold as \( P \). According to the problem, three times as many pigs ... |
Question:
What is the sum of the lengths in centimeters (cm) of all the edges of a cube with one edge length of 15 centimeters (cm)?
Answer:
A cube has 12 edges, and each edge of a cube is of equal length. If one edge length is 15 cm, then the sum of the lengths of all the edges is:
12 edges * 15 cm/edge = 180 cm
So... |
Question:
In the addition of two-digit numbers, the units digit of added number was originally 5 but was mistaken as 8. Also, when the number 7 in the tens place of the number being added was mistakenly calculated as 4, the calculated value was 111. Find the result of the correct calculation.
Answer:
Let's denote the ... |
Question:
Find the number of all faces of a regular icosahedron.
Answer:
A regular icosahedron is a polyhedron with 20 identical equilateral triangular faces. Therefore, the number of all faces of a regular icosahedron is 20. |
Question:
If the sum of the two pages of the book Eunji has opened is 137, what is the larger number of the two pages Eunji has opened?
Answer:
When a book is opened, the two facing pages are always consecutive numbers. Since the sum of these two pages is 137, we can set up an equation to find the page numbers.
Let t... |
Question:
There are several chairs inside the church. If 9 students sit per chair, one student cannot sit, and if 10 students sit per chair, 1 chair becomes vacant. How many students went to church?
Answer:
Let's denote the number of chairs in the church as C and the number of students as S.
From the first condition,... |
Question:
A regular octagonal fence was built using eight 2.3-meter (m) wooden poles. What is the perimeter of this fence in centimeters (cm)?
Answer:
To find the perimeter of the octagonal fence, we need to add up the lengths of all eight sides. Since each side is made from a 2.3-meter wooden pole, we can calculate t... |
Question:
Hyungjun used half of his ribbon and 2000 centimeters (cm) of ribbon to wrap the first box, and used half of the remaining ribbon and 2000 centimeters (cm) of ribbon to wrap the second box, but there was no ribbon left. How many centimeters (cm) is the ribbon Hyeongjun had at first?
Answer:
Let's denote the ... |
Question:
Which is the smallest among circle A with a diameter of 10 centimeters (cm), circle B with a radius of 4 centimeters (cm), and circle C with a sum of 9 in its diameter and radius?
Answer:
To determine the smallest circle, we need to compare their sizes, which can be done by looking at their radii.
Circle A ... |
Question:
A park is in the shape of a square with sides measuring 10 meters (m). We want to divide the park into right triangles with a base of 1 meters (m) and a height of 3 meters (m). What is the maximum number of zones that can be divided?
Answer:
To find the maximum number of zones that can be divided into right ... |
Question:
If a ball that bounces 1/4 of its height is dropped from a height of 12.8 meters (m), how many centimeters (cm) will the third bounce be?
Answer:
To find the height of the third bounce, we need to calculate the height after each bounce.
The first bounce will be 1/4 of the initial height of 12.8 meters.
Fi... |
Question:
There are 34 hibiscus. There are 13 fewer hibiscus than chrysanthemums. There are 23 more chrysanthemums than dandelions. How many hibiscus, chrysanthemum, and dandelion are there in total?
Answer:
Let's denote the number of hibiscus as H, the number of chrysanthemums as C, and the number of dandelions as D.... |
Question:
The price of one onion is 200 won. How much does one bag of onions cost, if you divide 180 onions into 6 bags?
Answer:
First, let's find out how many onions are in one bag. If you divide 180 onions into 6 bags, each bag would contain:
180 onions / 6 bags = 30 onions per bag
Now, if one onion costs 200 won,... |
Question:
The circumference of a wheel is 94.2 centimeters (cm). If the diameter of this wheel is 30 centimeters (cm), how many times the circumference of the wheel is than the diameter?
Answer:
To find out how many times the circumference of the wheel is greater than the diameter, we can divide the circumference by t... |
Question:
Jungkook tries to divide 10 balls into boxes containing 5 balls each. How many boxes does Jungkook need?
Answer:
Jungkook would need 2 boxes to divide 10 balls into boxes containing 5 balls each. |
Question:
I cut 78 centimeters (cm) of wire and used all of them to make one triangle and one square. If the sum of the lengths of the three sides of the triangle is 46 centimeters (cm), how many centimeters (cm) is the side of the square?
Answer:
If the sum of the lengths of the three sides of the triangle is 46 cm, ... |
Question:
It requires 30 pictures to play 1 second of the animated film called 'The Snow Prince'. How many pictures are necessary to make a 25-second screening?
Answer:
If it takes 30 pictures to play 1 second of the animated film, then for a 25-second screening, you would need:
30 pictures/second * 25 seconds = 750 ... |
Question:
After arranging the vases in a square shape, there were 6 bottles left. So, I tried to increase the width and length by one row each, but 11 vases were insufficient. If you arrange these vases in 7 rows, how many bottles are there in 1 row?
Answer:
Let's denote the number of vases in one row of the original ... |
Question:
How many kilograms (kg) does 1 meter (m) of marble weigh if 3/4 meter (m) of marble weighs 15/2 kilograms (kg)?
Answer:
To find out how much 1 meter of marble weighs, we can set up a proportion based on the given information that 3/4 meter of marble weighs 15/2 kilograms.
Let x be the weight of 1 meter of m... |
Question:
At first, Jungkook had 8 apples. How many apples does Jungkook have in total when he is given 7 apples?
Answer:
Jungkook originally had 8 apples. When he is given 7 more apples, you simply add the 7 apples to the original 8 apples to find the total number of apples he has.
8 apples + 7 apples = 15 apples
S... |
Question:
Find the sum of the largest and smallest six-digit numbers that can be formed by using 2, 0, 4, 1, 5, and 8 only once.
Answer:
To find the largest six-digit number that can be formed by using the digits 2, 0, 4, 1, 5, and 8 only once, we need to arrange the digits in descending order, making sure that the fi... |
Question:
Hyeongi studies for 0.6 hours a day. For how many hours did Hyeongi study in 3 weeks?
Answer:
To find out how many hours Hyeongi studied in 3 weeks, we need to calculate the total number of days in 3 weeks and then multiply that by the number of hours Hyeongi studies each day.
There are 7 days in a week. So... |
Question:
Seokgi and Yeseul are going to share a wire that is 1 meter (m) and 50 centimeters (cm) long. Find how many centimeters (cm) of wire must Seokgi take for him to get 16 centimeters (cm) shorter wire than Yeseul's.
Answer:
First, let's convert the total length of the wire into centimeters. Since 1 meter is equ... |
Question:
A rectangular wrapping paper is 6 centimeters (cm) wide and 28 centimeters (cm) in perimeter. Find the area of the area that can be covered with this wrapping paper.
Answer:
To find the area of the rectangular wrapping paper, we first need to determine its length and width. We already know the width is 6 cm.... |
Question:
There are two different numbers A and B. Find B from the two-digit addition formula AB+25=B3.
Answer:
Let's analyze the given formula: AB + 25 = B3.
Here, AB represents a two-digit number where A is the tens digit and B is the units digit. B3 represents another two-digit number where B is the tens digit and... |
Question:
Haechan used all the ribbon tapes he had to make a rectangle of 7 centimeters (cm) long and 5 centimeters (cm) wide. If he used this ribbon tape again to make a square, how many centimeters (cm) would each side be?
Answer:
To find out how much ribbon tape Haechan used to make the rectangle, we need to calcul... |
Question:
You want to create a rectangular field that has the same area as a triangular field with a base of 7.2 meters (m) and a height of 7 meters (m). If the width of a rectangular field is 4 meters (m), how many meters (m) should the length be?
Answer:
To find the area of the triangular field, we use the formula f... |
Question:
Find how many three-digit numbers 7A6 are less than 756. Each of the numbers from 0 to 9 can be in the place of A.
Answer:
To find how many three-digit numbers of the form 7A6 are less than 756, we need to determine the possible values for A.
Since the hundreds digit is the same (7) for both numbers, we onl... |
Question:
Find the value of dividing the area of a rectangle in half when the rectangle has a width of 25 centimeters (cm) and a height of 16 centimeters (cm).
Answer:
To find the area of a rectangle, you multiply the width by the height. So for this rectangle, the area is:
Area = Width × Height
Area = 25 cm × 16 cm
... |
Question:
The shop owner had arranged 21.52 liters (L) of milk, but only 12.64 liters (L) were sold. Find the amount of liters (L) of the remaining milk.
Answer:
To find the amount of remaining milk, we need to subtract the amount of milk sold from the total amount of milk arranged by the shop owner.
Remaining milk =... |
Question:
Subtracting 1.9 from a number, multiplying by 1.5, adding 32 and then dividing by 2.5 results in 20. Calculate the number including the decimal point.
Answer:
Let's denote the number we are looking for as \( x \).
According to the given operations, we have the following equation:
\[ \frac{(x - 1.9) \times ... |
Question:
If you divide a number by 1.2, subtract 22.5, multiply that number by 0.6, then add 10.5, you can get 30. Find out this number.
Answer:
Let's call the number we are trying to find "x". We can set up an equation based on the operations given:
1. Divide x by 1.2: x / 1.2
2. Subtract 22.5: (x / 1.2) - 22.5
3.... |
Question:
There are 5 fish A, B, C, D, and E. A is faster than B and slower than C. E is slower than D. B is faster than D. Which fish is the slowest?
Answer:
From the information given, we can deduce the following:
1. A is faster than B but slower than C, so the order so far is C > A > B.
2. E is slower than D, so E... |
Question:
At Seongmin's school, there are upper and lower math classes. The math average of the top 20 students in the upper class is 42 points, and the average of the bottom 20 students in the lower class is 38 points. What is the average math score of Seongmin's class?
Answer:
To calculate the average math score of ... |
Question:
Nine oil paintings and seven watercolor paintings are pasted on the walls of the classroom. How many pictures are on the walls of the classroom?
Answer:
There are nine oil paintings and seven watercolor paintings on the walls of the classroom. To find the total number of pictures, you add the two amounts tog... |
Question:
One tomato was planted in the 8th row from the front, 14th row from the back, 7th row from the left, and 13th row from the right. If you plant the same number of tomatoes in each row, how many tomatoes will there be in your garden?
Answer:
To find the total number of tomatoes in the garden, we need to determ... |
Question:
How many two-digit natural numbers have both odd digits or both even digits?
Answer:
To find the number of two-digit natural numbers with both odd digits or both even digits, we can count them separately and then add the results.
For odd digits (1, 3, 5, 7, 9), there are 5 choices for the tens place and 5 c... |
Question:
There was 1 liter (L) of milk, of which Yeseul drank 0.1 liters (L), and Gayoung drank 0.2 liters (L) more than Yeseul. After a while, Hancho came and drank the milk, and as a result, there were 0.3 liters (L) left. How many liters (L) of milk did Hancho drink?
Answer:
Let's calculate the amount of milk Gayo... |
Question:
22 people stand in a line in descending order according to their heights. When Youngchul is the 13th person when counted from the back, where will Youngchul be, when counted from the back, when all the people line up in ascending order? Answer using an ordinal number.
Answer:
If Youngchul is the 13th person ... |
Question:
If one of the 10 natural numbers with an average of 42 is set to 50, the average is 44. Find what this number was before fixing it.
Answer:
Let's denote the sum of the 10 natural numbers as S. Since the average of these numbers is 42, we can write:
S / 10 = 42
From this, we can find the total sum S:
S = 4... |
Question:
There is a number that equals twice the sum of the quotient of 40 divided by 8 and the quotient of 34 divided by 12. Find this number.
Answer:
First, let's find the quotient of 40 divided by 8:
40 ÷ 8 = 5
Next, let's find the quotient of 34 divided by 12:
34 ÷ 12 = 2 with a remainder, but since we are lo... |
Question:
A+B+B=814.8. When you move the decimal point of B one place to the right, it becomes equivalent to A. Calculate the value of A-B including the decimal point.
Answer:
Let's denote A as x and B as y. The equation given is:
x + y + y = 814.8
x + 2y = 814.8
When you move the decimal point of B one place to the... |
Question:
Students stand in a line. There is no one in front of Taehyung and there are three people between Taehyung and Namjoon. If 8 people are standing behind Namjoon, how many students are in the line?
Answer:
Let's count the number of students in the line based on the given information:
1. Taehyung is at the fro... |
Question:
Hoseok kicked jegi 48 times. Jinsu kicked jegi 15 times each in the 1st and 2nd attempt. At least how many times should Jinsu kick jegi in the 3rd attempt, in order to kick more than Hoseok?
Answer:
Hoseok kicked jegi 48 times.
Jinsu kicked jegi 15 times in the 1st attempt and 15 times in the 2nd attempt, w... |
Question:
Multiply a number by 5 to get 100. What is the result when the number is divided by 10?
Answer:
Let's call the number we are looking for "x".
According to the first part of the problem, when we multiply x by 5, we get 100:
5 * x = 100
To find x, we divide both sides of the equation by 5:
x = 100 / 5
x = 20... |
Question:
There is a list of numbers: 3, 5, 6, and 7. You are going to use 2 numbers from it to create a two-digit number. What is the possible smallest number that is a multiple of 7?
Answer:
To create the smallest two-digit number that is a multiple of 7 using the numbers 3, 5, 6, and 7, we need to consider the poss... |
Question:
How many meters (m) would it be if you fold a 12 meters (m) long string in half and then fold it in half again?
Answer:
If you fold a 12-meter long string in half, it would become 12 m / 2 = 6 meters long.
If you then fold that 6-meter length in half again, it would become 6 m / 2 = 3 meters long.
So, afte... |
Question:
You are given three numbers 1, 7, and 9. How many two-digit numbers can be formed using a given number once?
Answer:
To form a two-digit number, we need to select one number for the tens place and one number for the units place. Since we cannot repeat the numbers, we have 3 choices for the tens place and, af... |
Question:
Which of the five numbers 5, 8, 4, 3, 2 is the second largest?
Answer:
To find the second largest number, we first identify the largest number and then find the next largest number among the remaining numbers.
The largest number among 5, 8, 4, 3, 2 is 8.
The remaining numbers are 5, 4, 3, and 2.
The secon... |
Question:
I am trying to make a two-digit number by picking two different numbers from 3, 5, 7, and 8. Find the sum of the largest and smallest possible numbers.
Answer:
To make the largest possible two-digit number, you would want to pick the largest digits available and place the larger one in the tens place. From t... |
Question:
When the roof is drawn on drawing paper, it is the trapezoid whose length of the upper side is 6 centimeters (cm) shorter than the length of the lower side, and the height is 8 centimeters (cm). If the area of the roof is 72 square centimeters (cm2), find the length of the upper side of the roof.
Answer:
To ... |
Question:
Minyoung has 4 marbles and Yujeong has 2. Eunji has 1 more marble than Minyoung. Who has the most marbles?
Answer:
Minyoung has 4 marbles. Eunji has 1 more marble than Minyoung, so Eunji has 4 + 1 = 5 marbles. Yujeong has 2 marbles, which is less than both Minyoung and Eunji. Therefore, Eunji has the most ma... |
Question:
Subtracting a number by 69 resulted in 37. Find the value of the result by adding 55 to the number.
Answer:
Let's call the number we are looking for "x".
According to the information given, when we subtract 69 from x, we get 37:
x - 69 = 37
To find the value of x, we add 69 to both sides of the equation:
x... |
Question:
The number of apples Minjin has is divided by 8. Seongyeong gave 8 to Minjin, but Bong-Geon took 30 of them. If the remaining number of apples is 12 when multiplied by 6, how many apples does Minjin have at the beginning?
Answer:
Let's denote the number of apples Minjin has at the beginning as A.
According ... |
Question:
There are three numbers 85.9, 5.31, and 43/2. What is the sum of them all?
Answer:
To find the sum of the three numbers, we first need to make sure they are all in the same format. The numbers given are 85.9 (a decimal), 5.31 (a decimal), and 43/2 (a fraction).
First, let's convert the fraction 43/2 to a d... |
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