Datasets:
Rimyy
/
problemMathGemma

Dataset card Data Studio Files
xet
 Community
2
text
stringlengths
71
3.78k
Question: If we divide this value by 2.5 and take away 10.5 and then multiply it by 0.3, we get 5.85. What is this number? Answer: Let's call the original number "x". We can set up an equation based on the operations described: ((x / 2.5) - 10.5) * 0.3 = 5.85 Now, let's solve for x step by step: 1. Divide both sides...
Question: There are three numbers A, B and C. A is 38 greater than 18. B is 26 less than A. C is the quotient of B divided by 3. Which number is the smallest? Answer: Let's calculate each number step by step: A is 38 greater than 18, so: A = 18 + 38 A = 56 B is 26 less than A, so: B = A - 26 B = 56 - 26 B = 30 C is ...
Question: How many meters (m) is the width of Jeong Su's field if it is a rectangle with an area of 143.2 square meters (m2) and the length of this field is 4 meters (m)? Answer: To find the width of Jeong Su's field, we can use the formula for the area of a rectangle: Area = Length × Width We are given the area (143...
Question: A number multiplied by 8. 64 was added to the multiplied result. If the result of the calculation is 336, what is the number? Answer: Let's call the number we are looking for "x". According to the problem, the number is multiplied by 8 and then 64 is added to the result. The final result is 336. We can write...
Question: In one exhibition hall, there was not enough space to hang the work, so we decided to install a temporary wall. If the width of this wall is 5.4 meters (m) and the length is 2.5 meters (m), how many square meters (m2) will the area be? Answer: To find the area of the wall, you multiply the width by the length...
Question: Seokjin, Taehyung, Namjoon, Yoojeong, and Yuna are standing in line to checkout. At this time, how many ways are there to line up so that the order of payment differs? Answer: To determine the number of ways to line up 5 people so that the order of payment differs, we need to calculate the number of permutati...
Question: How many two-digit numbers can be made using two of the number cards 1, 2, and 7? Answer: To form a two-digit number using two of the number cards 1, 2, and 7, we can consider each of the numbers as a potential digit in either the tens place or the ones place. Let's list out the possible combinations: - Usi...
Question: You want to create a two-digit number by drawing two different numbers from 7, 4, 0, 3, and 5. Find the difference between the third largest number and the third smallest number. Answer: To find the third largest and third smallest two-digit numbers that can be formed from the digits 7, 4, 0, 3, and 5 without...
Question: A rectangle 6 centimetres (cm) wide, 5 centimetres (cm) long and 4 centimetres (cm) high has been painted green on all sides. This rectangle is cut into 120 cubes, each 1 centimetre (cm) long. How many of the cubes have no coloured faces? Answer: To find out how many of the cubes have no coloured faces, we ne...
Question: As Yoojung gave 7 candies to her older sister and 6 to her younger sister, there were 15 left on hand. Find number of candies Yoojung had at first. Answer: Let's denote the number of candies Yoojung had at first as \( C \). According to the information given, after giving away candies to her sisters, Yoojung...
Question: Jungkook collected 6 plus 3 points, Yoongi collected 4 points, and Yuna collected 5 points. Who has the smallest number? Answer: Yoongi collected 4 points, which is the smallest number among the points collected by Jungkook (6 + 3 = 9 points), Yoongi (4 points), and Yuna (5 points).
Question: Subtract 29 from this number and add 64 to get 76. Find the number. Answer: Let's call the number we're trying to find "x". According to the problem, if we subtract 29 from x and then add 64, the result should be 76. We can write this as an equation: x - 29 + 64 = 76 Now, let's solve for x: First, combine...
Question: A number multiplied by 6 and divided by 1.5 equals 3.8. Find a number. Answer: Let's call the number we are looking for "x". According to the problem, when x is multiplied by 6 and then divided by 1.5, the result is 3.8. We can write this as an equation: (6 * x) / 1.5 = 3.8 To solve for x, we can first mul...
Question: What is the length of the radius of the circumcircle of a right triangle with sides 10 centimeters (cm), 8 centimeters (cm), and 6 centimeters (cm), respectively? Answer: In a right triangle, the hypotenuse is the diameter of the circumcircle. This is a consequence of the fact that the right angle inscribes a...
Question: A pumpkin weighs 2 kilograms (kg) and 9/10 kilograms (kg), and a watermelon weighs 41/10 kilograms (kg). Which is heavier, pumpkin or watermelon? Answer: To determine which is heavier, we need to compare the weights of the pumpkin and the watermelon. The pumpkin weighs 2 kg and 9/10 kg. To combine these, we ...
Question: There is a box A that is 3 centimeters (cm) high and box B with 3.5 centimeters (cm) high. Taehyung stacked the boxes A and Yoongi stacked the boxes B. If Taehyung and Yoongi each stacked the boxes up to 16th and 14th floors, respectively, find out who stacked the boxes higher. Answer: To find out who stacked...
Question: There are 108 marbles of red marbles, blue marbles and white marbles. The number of blue marbles is 1/3 of the red marbles and the number of white marbles is 1/2 of the blue marbles. Which color has the least number of marbles? Answer: Let's denote the number of red marbles as R, the number of blue marbles as...
Question: There are 6 students playing (a) sports, and the number of students playing (b) sports is 4 times the number of students playing (a) sports. How many students do (b) sports? Answer: If the number of students playing (a) sports is 6, and the number of students playing (b) sports is 4 times that number, then th...
Question: There is a pyramid whose base side is a dodecagon. How many faces does this pyramid have? Answer: A pyramid with a dodecagon (12-sided polygon) as its base will have 12 triangular faces, one for each side of the dodecagon, plus the base itself. Therefore, the pyramid will have a total of 12 + 1 = 13 faces.
Question: There is a farm in the shape of a rectangle with a length of 3.6 kilometers (km) and a width 2.5 times its length. If half of this farm is for cattle and half is for pigs, find the area of the cattle area in square kilometers (km2). Answer: First, we need to find the width of the farm. Since the width is 2.5 ...
Question: Sangheon is 1.56 meters (m) tall. Chiho is 0.14 meters (m) shorter than Sangheon, and Nara is 0.27 meters (m) taller than Chiho. How tall is Nara in meters (m)? Answer: First, we need to find out how tall Chiho is. Since Chiho is 0.14 meters shorter than Sangheon, we subtract 0.14 meters from Sangheon's heigh...
Question: 1250 people participated in a marathon. If there were 124 more people who gave up during running than finished people, how many people finished? Answer: Let's denote the number of people who finished the marathon as F. According to the information given, the number of people who gave up during the marathon is...
Question: Minhyun drank 0.41 times more milk than 6 liters (L) and Jinyoung drank 2.3 liters (L). Who has drunk more milk? Answer: To find out who drank more milk, we need to calculate how much milk Minhyun drank first. Minhyun drank 0.41 times more milk than 6 liters. To find out how much that is, we multiply 6 liter...
Question: Among the numbers from 1 to 15, only odd numbers were selected and arranged in ascending order from left to right. Find the sum of the second number from the right and the second number from the left. Answer: The odd numbers from 1 to 15 are: 1, 3, 5, 7, 9, 11, 13, 15. Arranged in ascending order from left t...
Question: There are 16 of Hoseok and his friends. How many friends are to Hoseok's left when there are 8 friends to Hoseok's right? Answer: If there are 8 friends to Hoseok's right, then Hoseok is the 9th person from the right (since we count Hoseok as well). Since there are 16 people in total, we can subtract the 9 pe...
Question: There are 1 to 25 buildings in Jungkook's apartment complex, and each building has up to 10 floors. If there are 8 households on each floor, how many households can live in Jungkook's apartment complex? Answer: To find the total number of households in Jungkook's apartment complex, we need to multiply the num...
Question: Find the smallest number of natural numbers in excess of 12. Answer: The smallest natural number in excess of 12 is 13. Natural numbers are positive integers starting from 1, so the next number after 12 is 13.
Question: 32 students of different heights are lined up in order from tallest to shortest. Jimin stands 27th from the front, and Yuna stands 11th from the front. How many students are standing between Jimin and Yuna? Answer: If Jimin stands 27th from the front and Yuna stands 11th from the front, we can calculate the n...
Question: Express the decimal value when 22 is divided by 8 without remainder. Answer: When 22 is divided by 8, the quotient is 2 with a remainder of 6. To express the value without a remainder, we convert the remainder into a decimal. To do this, we take the remainder (6) and divide it by the divisor (8). 6 ÷ 8 = ...
Question: Minjeong's family drinks 0.2 liters (L) of juices three times every day. How many liters (L) of juice does Minjeong's family drink in a week? Answer: Minjeong's family drinks 0.2 liters of juice three times a day. To find out how much they drink in a day, we multiply the amount they drink each time by the num...
Question: What is the largest three-digit number that is a multiple of 4 and a multiple of 5? Answer: To find the largest three-digit number that is a multiple of both 4 and 5, we need to find the largest three-digit number that is a multiple of their least common multiple (LCM). The LCM of 4 and 5 is 20, since 4 = 2^...
Question: Five watermelons that weigh 1050 grams (g) each were placed on one side of a pan balance scale. Two of nine apples of equal weight, each weighing 4.5 kilograms (kg), were placed on the opposite side of that scale. How many more melons weighing 850 grams (g) each must be placed on the side of the apples to lev...
Question: A number divided by 9 is 8. Yoongi added 11 to the number. How much is this value? Answer: Let's call the number "x." According to the information given: x / 9 = 8 To find the value of x, we multiply both sides of the equation by 9: x = 8 * 9 x = 72 Now, Yoongi added 11 to the number: 72 + 11 = 83 So, t...
Question: To fill the fishbowl with water, you need to pour water 7 times with the A bowl, 8 times with the B bowl, and 5 times with the C bowl. Which bowl has the largest capacity? Answer: To determine which bowl has the largest capacity, we need to compare the number of times each bowl is used to fill the fishbowl. F...
Question: The supermarket sells carrots, pears, and cucumbers, but Youngbin only has enough money to buy two kinds. How many cases can Youngbin buy? Answer: Youngbin has three options to choose from: carrots, pears, and cucumbers. Since he can only buy two kinds, we need to calculate the number of combinations of two i...
Question: Yeonjeong and Donghun rode bicycles on a lake with a circumference of 3 kilometers (km) and started at the same time in opposite directions from the same place. Yeonjeong rides at a speed of 100 meters (m) per minute, and Donghun rides a bicycle at a speed of 150 meters (m) per minute. Find how many minutes l...
Question: Find the difference between the largest and smallest three-digit numbers that can be formed by using the three number cards 6, 3, and 8 only once. Answer: To find the largest three-digit number that can be formed using the digits 6, 3, and 8, we should place the largest digit in the hundreds place, the second...
Question: Jimin wanted to subtract by a number from 34 but instead added the number to 20 to get 60. Find the correctly calculated value. Answer: Let's call the number that Jimin wanted to subtract from 34 as "x". According to the information given, Jimin added the number to 20 instead of subtracting it from 34, and t...
Question: Sunwoo is playing a game of making the smallest number using all the number cards he has. If Sunwoo has cards with 2 and 4 written on them, what number should he make? Answer: To make the smallest number using all the number cards Sunwoo has, he should arrange the cards in ascending order. Since he has cards ...
Question: Subtracting 16 from a certain number is divisible by 37, and the quotient is 23. Find what the number is that. Answer: Let's call the certain number "x". According to the given information, when we subtract 16 from x, the result is divisible by 37, and the quotient is 23. So, we can write the equation as: (...
Question: There are 2 straps of different lengths. The sum of the lengths of the two straps is 64 centimeters (cm), and the longer strap is 48 centimeters (cm) longer than the shorter strap. Find how many pieces of strap that equal the length of the shorter strap can be cut from the longer strap. Answer: Let's denote t...
Question: Yoongi multiplied 8 by some number and got 64. What number is it? Answer: To find the number that Yoongi multiplied by 8 to get 64, you need to divide 64 by 8. 64 ÷ 8 = 8 So, the number that Yoongi multiplied by 8 to get 64 is 8.
Question: The sum of 25 consecutive even numbers is 750. Write the smallest even number among these. Answer: Let's denote the smallest even number among the 25 consecutive even numbers as \( n \). Since the numbers are consecutive even numbers, we can represent them as: \( n, n+2, n+4, n+6, \ldots, n+48 \) (since ther...
Question: There are 24 students. Among them, 50 sheets of colored paper were equally distributed to female students only, and 2 sheets were left. If the number of boys is twice the number of girls, how many pieces of colored paper will each girl receive? Answer: Let's denote the number of girls as G and the number of b...
Question: A number multiplied by 4 and then multiplied by 25 gives 812. Find the number. Answer: Let's call the number we are looking for "x". According to the problem, we have: x * 4 * 25 = 812 First, we can simplify the equation by combining the constants: 4 * 25 = 100 So now we have: x * 100 = 812 To find x, ...
Question: Find the sum of even numbers from 1 to 100. Answer: To find the sum of even numbers from 1 to 100, we can use the formula for the sum of an arithmetic series: Sum = n/2 * (first term + last term) First, we need to determine the first and last terms of our series of even numbers and the number of terms (n). ...
Question: A cube has a volume of 2744 cubic centimeters (cm3). If you divide the area of the base of this cube by the height, what is the quotient? Answer: To find the quotient of the area of the base of the cube divided by the height, we first need to find the dimensions of the cube. The volume of a cube is given by ...
Question: What is the smallest number among the numbers greater than 1.1 among the numbers 1.4, 9/10, 1.2, 0.5, and 13/10? Answer: To find the smallest number greater than 1.1 among the given numbers, we first need to convert all the numbers to the same format (decimals) to make comparison easier. The given numbers ar...
Question: It is said that adding 12 to 60 and then dividing by 3 is equal to a number subtracted by 12 and then multiplied by 3. Find the number. Answer: Let's denote the number we are looking for as \( x \). According to the statement, adding 12 to 60 and then dividing by 3 is equal to the number subtracted by 12 and...
Question: Subtracting 2 from a certain number gives 5. What is the value of the certain number plus 2? Answer: Let's call the certain number "x". According to the given information: x - 2 = 5 To find the value of x, we add 2 to both sides of the equation: x - 2 + 2 = 5 + 2 x = 7 Now, we want to find the value of x ...
Question: Find how many centimeters (cm) a wire of length 28 centimeters (cm) becomes when divided into quarters. Answer: To divide the wire into quarters, you would divide the total length by 4. So, 28 cm divided by 4 is: 28 cm / 4 = 7 cm Each quarter of the wire would be 7 cm long.
Question: Yoongi subtracted 10 from a certain number and got 15. What is the value when 5 is added to the number? Answer: Let's call the certain number "x". According to the information given: x - 10 = 15 To find the value of x, we add 10 to both sides of the equation: x - 10 + 10 = 15 + 10 x = 25 Now, we need to f...
Question: When the apples in the box were divided into 8 baskets in equal amounts, each basket contained 6 apples, leaving 4 apples. What is the number of apples divided by 8? Answer: If each of the 8 baskets contained 6 apples, then the total number of apples that were divided into the baskets is: 8 baskets * 6 apple...
Question: You want to choose 15 out of 4 types of fruits. Calculate the total number of choices of fruit, if you choose two or more of each fruit. Answer: To solve this problem, we can use the concept of combinations with repetition (also known as stars and bars method). Since you want to choose at least two of each fr...
Question: Given two distinct points, how many straight lines pass through these two points? Answer: Only one straight line can pass through two distinct points. This is because a straight line is defined by two points, and any two points determine a unique straight line.
Question: The sum of all the lengths of the cube where two sides meet is 108 centimetres (cm). In this cube, what is the length in centimetres of the line segment that connects one vertex to the next? Answer: The sum of all the lengths where two sides meet in a cube refers to the total length of all the edges of the cu...
Question: A certain number is a single digit. This number is greater than 0 and less than 2. Find this number. Answer: The number that is a single digit, greater than 0, and less than 2 is 1.
Question: How many diagonals can be drawn in the figure below? : Pentadecagon Answer: A pentadecagon is a polygon with 15 sides. To find the number of diagonals in any polygon, you can use the formula: Number of diagonals = n(n - 3) / 2 where n is the number of sides in the polygon. For a pentadecagon, n = 15. Plugg...
Question: The number of students in Jihoon's class is more than 35 and less than 70. If Jihoon's classmates form groups of 6, there will be 3 left, and if they form groups of 8, 1 will remain. Find the number of students in Jihoon's class. Answer: Let's denote the number of students in Jihoon's class as \( n \). Accor...
Question: I have to add 273 to a number, but I accidentally subtract it from a number, and it became 477. How much is it if I calculate it correctly? Answer: If you accidentally subtracted 273 from a number and got 477, you can find the original number by adding 273 back to 477. Original number = 477 + 273 Now, to ca...
Question: A horse, a cow, a pig, a sheep, a rabbit, and a squirrel entered the fence in that order. Which animal came in fourth place? Answer: The sheep entered in fourth place.
Question: There were several pieces of colored paper. When 9 of them were used, 12 were left. How many sheets of colored paper were there at the beginning? Answer: If 9 sheets of paper were used and 12 were left, then the total number of sheets of colored paper at the beginning was: 9 (used) + 12 (left) = 21 sheets S...
Question: Find the average of the multiples of 6 among the natural numbers from 1 to 100. Answer: To find the average of the multiples of 6 among the natural numbers from 1 to 100, we first need to identify all the multiples of 6 within that range. The first multiple of 6 is 6 itself, and the last multiple of 6 within...
Question: You went fishing and caught 4 fish (a) and 3 fish (b) in the morning. I caught a few more fish in the afternoon, so today you caught 10 fish in total. How many fish did you catch in the afternoon? Answer: In the morning, you caught a total of 4 fish (a) + 3 fish (b) = 7 fish. You caught 10 fish in total for ...
Question: Cars are equally spaced from the front and back on the road. If the distance between the first car and the last car is 242 meters (m), and the distance between the cars is 5.5 meters (m), how many cars are on the street? Answer: Let's denote the number of cars as n. Since the cars are equally spaced, the tot...
Question: Which of the three numbers 5, 8, and 4 is the second largest? Answer: The second largest number among 5, 8, and 4 is 5.
Question: The sum of 5 consecutive odd numbers is 195. Write the 2nd largest of these 5 odd numbers. Answer: Let's denote the five consecutive odd numbers as follows: 1st number: x - 4 2nd number: x - 2 3rd number (middle number): x 4th number (2nd largest): x + 2 5th number (largest): x + 4 Since they are consecutiv...
Question: 6 is the result of accidentally dividing a number by 15 when it is supposed to be multiplied by 15. How much do you get if you calculate correctly? Answer: If the result of the incorrect division is 6, then the original number (let's call it x) divided by 15 equals 6: x / 15 = 6 To find the original number ...
Question: There is a pyramid whose sum of the number of vertices and the number of faces is 16. How many edges does this pyramid have? Answer: A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex, which is not in the plane of the base. The number of faces of a pyramid is one more...
Question: A, B, and C are three different natural numbers. When A is divided by 11, the quotient is B and the remainder is C. Find the largest number that can be C. Answer: The largest possible remainder when a number is divided by another number is always one less than the divisor. This is because remainders are the "...
Question: There is an icosagon. How many diagonals can be drawn from a vertex? Answer: An icosagon is a polygon with 20 sides. To find the number of diagonals that can be drawn from a single vertex, we need to consider that a diagonal is a line segment connecting two non-adjacent vertices. From any given vertex in an ...
Question: What is the perimeter in centimeters (cm) of an isosceles triangle with two sides measuring 12 centimeters (cm) and the other side measuring 17 centimeters (cm)? Answer: The perimeter of a triangle is the sum of the lengths of all its sides. For an isosceles triangle with two sides measuring 12 cm each and th...
Question: There are 4 types of pencils and 6 types of ballpoint pens. How many ways can you choose one type of pencil and one type of ballpoint pen? Answer: To determine the number of ways you can choose one type of pencil and one type of ballpoint pen, you can use the basic principle of counting, which states that if ...
Question: You are going to use all of the 30 centimeters (cm) of wire to make one rectangular shape. If the short side of the rectangle is 7 centimeters (cm), how many centimeters (cm) should the long side be? Answer: To find the length of the long side of the rectangle, we first need to determine the perimeter of the ...
Question: What is the difference between the largest number and the third smallest number possible when forming a number greater than or equal to 100 and less than 1000 with using odd numbers less than or equal to 5 only once? Answer: To form a number greater than or equal to 100 and less than 1000 using odd numbers le...
Question: Suppose you have 49 rabbits and 37 frogs on the farm. The total number of frogs and chickens is larger than rabbits by 9. How many chickens do you have? Answer: Let's denote the number of chickens as C. According to the information given, the total number of frogs and chickens is larger than the number of ra...
Question: Nine people stand in a line in order of shortest to tallest. Hoseok stands at the very back. If you line up again in order of the tallest to the tallest, what number will Hoseok stand from the back? Answer: If Hoseok stands at the very back when the nine people are lined up from shortest to tallest, it means ...
Question: A regular pentagon with one edge 16 centimetres (cm) long is made with one piece of thread. If the same thread is used to make an octagon, find the length of one edge of the octagon. Answer: To solve this problem, we need to find the total length of the thread used to make the regular pentagon and then use th...
Question: 25 students stand in a line. When 9 students are standing behind Yuna, how many students are standing in front of Yuna? Answer: If there are 9 students standing behind Yuna, then Yuna is the 10th student in line from the back. Since there are 25 students in total, to find out how many students are standing in...
Question: A triangular pyramid has a base area of 3 square centimeters (cm2) and a side area of 6 square centimeters (cm2). Find the surface area of this triangular pyramid. Answer: The surface area of a triangular pyramid (also known as a tetrahedron) is the sum of the areas of its four faces. In this case, we have on...
Question: There is a cube whose length is 5 centimeters (cm), and a cuboid B with the width, depth, and height of 4 centimeters (cm), 5 centimeters (cm), and 6 centimeters (cm), respectively. Find which of A and B has the greater volume. Answer: To find the volume of a cube (A), you use the formula: Volume of cube (A)...
Question: Each Dongkyun, Youngtak, and Seunghwan have cookies. If Dongkyun has more cookies than Youngtak, and Seunghwan has more cookies than Dongkyun, who has the most cookies? Answer: Seunghwan has the most cookies.
Question: Yumi counted a number by reducing 10 for 4 times. If the original number was 320, what is the value of Yumi counted? Answer: If Yumi counted a number by reducing it by 10 for 4 times, she subtracted 10 from the original number 4 times. So, the calculation would be: Original number: 320 After 1st reduction: ...
Question: Try to make a signal by throwing a coin 3 times. How many possible signals are there in all? Answer: When you throw a coin, there are two possible outcomes for each throw: heads (H) or tails (T). If you throw the coin three times, you can calculate the total number of possible signals (combinations of outcome...
Question: A circular plate with a radius of 15 centimeters (cm) has a circumference of 90 centimeters (cm). How many times is the plate's circumference longer than its diameter? Answer: The diameter of a circle is twice the radius. So, for a circular plate with a radius of 15 cm, the diameter would be: Diameter = 2 * ...
Question: Find the sum of odd numbers in the sequence from 1 to 200. Answer: To find the sum of odd numbers from 1 to 200, we can use the formula for the sum of an arithmetic series. The odd numbers in this range form an arithmetic sequence where each term increases by 2. The first term (a_1) is 1, and the last term (a...
Question: The sum of the vertices, faces, and edges of a certain prism is 44. How many edges does this prism have? Answer: Let's denote the number of vertices as V, the number of faces as F, and the number of edges as E. For a prism, we know that: - It has two congruent bases and all other faces are rectangles. - The ...
Question: When you divide a number by 11 and add 156, you get 178. Find the number. Answer: Let's call the number you're looking for "x". According to the problem, when you divide x by 11 and add 156, you get 178. We can write this as an equation: x/11 + 156 = 178 Now, we want to solve for x. First, we'll subtract 15...
Question: Jimin got (a) box and (b) box for presents. When a (a) box is lighter than a (b) box, which box is a lighter box? Answer: If a (a) box is lighter than a (b) box, then the (a) box is the lighter box.
Question: Haechan ran at a speed of 150 meters (m) in 20 seconds. How many meters (m) did Haechan run in 1 minute? Answer: To find out how many meters Haechan ran in 1 minute, we first need to determine his speed in meters per second (m/s). Haechan ran 150 meters in 20 seconds, so his speed is: Speed = Distance / Tim...
Question: If the numbers 1, 5, 9 and 4 are each used once to make a number, what is the third largest three-digit number with a tens digit of 5? Answer: To find the third largest three-digit number with a tens digit of 5 using the numbers 1, 5, 9, and 4, we need to consider the hundreds and units places. Since the ten...
Question: 10 rows of marbles are placed. 8 of them were placed in 9 rows, and 4 were placed in the other row. How many marbles are there in all? Answer: To find the total number of marbles, we need to multiply the number of marbles in each row by the number of rows and then add them together. For the 8 marbles in 9 ro...
Question: I am about to read the book in 4 days. I read 1/2 of the book on the first day and 1/4 of the book on the second day. Then on the third day, I read 1/6 of the entire book and on the fourth day, I had 20 pages left. Find how many pages are in the entire book. Answer: Let's denote the total number of pages in t...
Question: Nine people stand in a line in order from shortest to tallest. Hoseok is standing 5th from the back. If you line up again in order from the tallest to the shortest, what number will Hoseok stand from the back? Answer: If Hoseok is standing 5th from the back in a line ordered from shortest to tallest, that mea...
Question: You want to plant trees at intervals of 3.1 meters (m) in a circular garden with a circumference of 27.9 meters (m). Find how many trees you can plant. Answer: To find out how many trees you can plant at intervals of 3.1 meters along the circumference of the circular garden, you need to divide the circumferen...
Question: A swimming pool was filled with only 7 liters (L) and 200 milliliters (㎖) of water, which was supposed to have 15 liters (L) of water in it. If the water hose can fill the pool at a rate of 600 milliliters (ml) per second, how many seconds does it take to fill it with all 15 liters (L)? Answer: First, we need...
Question: 29 is subtracted from and 64 added to this number. What number is required for the result of this to be 76? Answer: Let's call the number we are looking for "x". According to the problem, 29 is subtracted from x and then 64 is added to the result. The final result should be 76. So the equation to solve is: ...
Question: If you add 2 to a number before subtracting 3, you get 7. What number is this? Answer: Let's call the number you're looking for x. According to the problem, if you add 2 to x and then subtract 3, you get 7. We can write this as an equation: x + 2 - 3 = 7 Now, simplify the equation by combining like terms: ...
Question: Find the sum of A, B, C, and D that satisfies A00B-50C9=1D93. Different alphabets represent different single-digit numbers. Answer: To solve this problem, we need to find the values of A, B, C, and D that satisfy the equation A00B - 50C9 = 1D93. Since A, B, C, and D are single-digit numbers, we can use the pr...
Question: The size of six box (C) equals the size of box (B), and the size of four box (B) equals the size of box (A). How many box (C) should you put in box (A) to make it full? Answer: Let's denote the size of box C as c, the size of box B as b, and the size of box A as a. According to the information given: 6c = b...