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Question: There is a banner 20 meters (m) long. I'm thinking of fixating this banner with nails. Nails were driven 1 meter (m) apart from both ends of the banner, and the remaining nails were nailed in at regular intervals. A total of 7 nails were used. Find the distance between one nail and another. Answer: To find th...
Question: The blue box and the red box contain balls. After moving 152 balls from the red box to the blue box, the number of balls in the red box is 346 more than the number of balls in the blue box. Find the difference between the number of balls in the two boxes before moving the balls. Answer: Let's denote the initi...
Question: What is the perimeter of an equilateral triangle with a side of 7 centimeters (cm)? Answer: An equilateral triangle has all three sides of equal length. If one side of the equilateral triangle is 7 centimeters, then all three sides are 7 centimeters each. To find the perimeter of the triangle, you add up the...
Question: How many edges does a cube have? Answer: A cube has 12 edges.
Question: Yoongi's age is 2 years younger than Hoseok's. The sum of the ages of Yoongi and Hoseok is 18 years old. How old is Yoongi? Answer: Let's denote Hoseok's age as H and Yoongi's age as Y. According to the information given: 1. Yoongi is 2 years younger than Hoseok: Y = H - 2 2. The sum of their ages is 18: Y +...
Question: If 6 professional baseball teams play with each other once, how many matches will there be in total? Answer: To determine the total number of matches that will be played, we can use the formula for the number of combinations of n teams taken 2 at a time, since each match involves 2 teams. The formula for comb...
Question: If there are 10, 50, and 100 won coins, and three coins are thrown at the same time, find the number of possible outcomes. (However, when a coin is thrown, it comes out either heads or tails.) Answer: When three coins are thrown, each coin has two possible outcomes: heads (H) or tails (T). Since there are thr...
Question: Sangwoo's midterm math score is higher than Hana's score, and Yunyong's math score is lower than Hana's score. Which of the three friends has the highest midterm math score? Answer: Sangwoo has the highest midterm math score among the three friends.
Question: Adding a number to the smallest two-digit number you can make from two different numbers from 1, 3, 5, and 8 equals 88. Find the number. Answer: The smallest two-digit number you can make from the numbers 1, 3, 5, and 8, using two different numbers, is 13 (using 1 and 3). Let's denote the number we need to a...
Question: A number divided by 6 is 26. What is the value of the number? Answer: To find the value of the number, you can set up an equation where the number divided by 6 equals 26: number / 6 = 26 To solve for the number, multiply both sides of the equation by 6: number = 26 * 6 number = 156 So the value of the nu...
Question: Of the people who visited the pool during the week, 1518 were women, of whom 536 were students. There were 525 more men than women, of whom 1257 were non-students. How many students visited the pool in total? Answer: Let's start by calculating the total number of men who visited the pool. Since there were 525...
Question: Taehyung and 10 of his friends are standing in a line. If 5 people are standing to Taehyung's left, how many people are standing to Taehyung's right? Answer: If Taehyung has 5 people standing to his left, and there are 10 friends in total, we can calculate the number of people to his right by subtracting the ...
Question: When 13 is divided by A, the quotient is 4, the remainder is B. A and B are both natural numbers. Find the largest possible value of A. Answer: When 13 is divided by A, the quotient is 4 and the remainder is B. This can be represented by the equation: 13 = 4A + B Since A and B are natural numbers, B must be...
Question: The five digit number 26AA2 is a multiple of 3. If single-digit number A represents the same number, how many numbers can be in A? Answer: For a number to be a multiple of 3, the sum of its digits must also be a multiple of 3. Let's find the sum of the digits of the number 26AA2, where A is the same single-di...
Question: Minyoung ate 10 tangerines from the basket. And an hour later, when she ate 6 more tangerines, the basket was empty. How many tangerines were in the basket? Answer: Minyoung ate 10 tangerines initially and then ate 6 more tangerines later. To find out the total number of tangerines that were in the basket, we...
Question: Among the four students, Minyoung passed the finish line faster than Yoongi, and Yoongi crossed the finish line faster than Jimin. If Jimin and Minyoung got through later than Yuna, who came in first? Answer: Yuna came in first because she crossed the finish line faster than both Minyoung and Jimin. Since Min...
Question: There are five numbers 10, 11, 12, 13, and 14. What is the sum of the 3rd and 2nd smallest numbers? Answer: The five numbers are 10, 11, 12, 13, and 14. The smallest number is 10, the second smallest is 11, and the third smallest is 12. The sum of the second smallest (11) and the third smallest (12) number...
Question: You need to add 8 to a number and subtract 11. But ended up subtracting 9 and 12 by mistake, and got 24. Find the product of the correctly calculated value and the incorrectly calculated value. Answer: Let's denote the original number as \( x \). According to the correct calculation, you should have done: \[...
Question: If a rectangle has the width of 0.9 times its length, and the length of 15 centimeters (cm), what is the area of this rectangle? Answer: To find the area of a rectangle, you multiply the length by the width. Given that the width is 0.9 times the length, and the length is 15 cm, we can calculate the width as ...
Question: If you can process 240 kg (kg) of rice in 4 days, how many days will it take to process 1920 kg (kg)? Answer: To find out how many days it will take to process 1920 kg of rice, we can set up a proportion based on the rate at which rice is processed. We know that 240 kg of rice is processed in 4 days. So, the...
Question: You are about to distribute the same two-digit number of pencils to the classmates. There is nothing left when distributing to 6 students and 9 students, and 1 pencil is left when distributing to 7 students. Find how many pencils there are. Answer: To find the number of pencils, we need to find a two-digit nu...
Question: Subtracting 17 from a number gives 55. If Yoongi wants to divide the number by 9, how much does Yoongi get? Answer: First, let's find the number by adding 17 to 55: Number = 55 + 17 Number = 72 Now, Yoongi wants to divide this number by 9: 72 ÷ 9 = 8 So, Yoongi gets 8 when he divides the number by 9.
Question: There are two different single-digit numbers A and B. Find the sum of A and B that satisfies the following addition formula AB+640=BBB. Answer: Let's analyze the given formula: AB + 640 = BBB. Here, AB represents a two-digit number where A is the tens digit and B is the units digit. BBB represents a three-di...
Question: Minha's hair grows at a rate of 0.39 millimeters (mm) per day. If the length of Minha's hair is 32.8 centimeters (cm) today, how many centimeters (cm) will it be after 30 days? Answer: First, we need to convert the daily growth rate from millimeters to centimeters, since the length of Minha's hair is given in...
Question: Sort 1.23, 3/4, 2.34, 2.12, 4.23, and 5/3 by largest to smallest. What could be the third? Answer: To sort these numbers from largest to smallest, we first need to convert all of them to decimal form for easy comparison: 1.23 remains 1.23 3/4 converts to 0.75 2.34 remains 2.34 2.12 remains 2.12 4.23 remains ...
Question: When A is divided by 7, the quotient is 5 and the remainder is 3. Get A. Answer: To find A, we can use the formula for division: A = (Quotient × Divisor) + Remainder Given that the quotient is 5 and the remainder is 3 when A is divided by 7, we can plug these values into the formula: A = (5 × 7) + 3 A = 35...
Question: A parallelogram has an area of 44 square centimeters (cm2) and a height of 11 centimeters (cm). What is the length of the base? Answer: The area of a parallelogram can be calculated using the formula: Area = Base × Height Given that the area is 44 cm² and the height is 11 cm, we can rearrange the formula to...
Question: You want to drink 19 liters (L) of water equally over 9 days. Find how many liters (l) of water you need to drink per day. Answer: To find out how many liters of water you need to drink per day, you can divide the total amount of water you want to drink by the number of days you want to drink it over. Total ...
Question: Sunye's house has no electricity, so she has to rely on matches. There are 8 matches in a matchbox. Sunye has 9 matchboxes and 7 single matches. If she uses 6 matches a day, find the maximum number of days she can last completely. Answer: Sunye has 9 matchboxes with 8 matches each, so she has a total of: 9 m...
Question: If a cinema has 4 rows of 8 chairs each, what is the total number of chairs in the cinema? Answer: To find the total number of chairs in the cinema, you multiply the number of rows by the number of chairs in each row. So, if there are 4 rows and each row has 8 chairs, the total number of chairs is: 4 rows *...
Question: The number cards have numbers from 1 to 12 written on them. When a number card is drawn, find the number of cases where the number on the card is a multiple of 3. Answer: The multiples of 3 between 1 and 12 are 3, 6, 9, and 12. There are 4 such numbers. Therefore, there are 4 cases where the number on the car...
Question: There are 5 people: Juri, Jungwoo, Myunghyun, Seokjin, and Jungkook. Jungwoo is smaller than Juri and Seokjin is smaller than Myunghyun. Juri is shorter than Jungkook. Myunghyun is shorter than Jungwoo. Who is the tallest? Answer: To determine who is the tallest, let's analyze the given information: 1. Jungw...
Question: What is the smallest 4-digit number that is a multiple of 3 and a multiple of 5? Answer: To find the smallest 4-digit number that is a multiple of both 3 and 5, we need to find the least common multiple (LCM) of 3 and 5 that is a 4-digit number. Since 5 is a prime number, the LCM of 3 and 5 is simply their p...
Question: You mistakenly added what should have subtracted 0.42 from a number, and ended up with 0.9. What is 0.5 added to the correctly calculated value? Answer: If you mistakenly added 0.42 instead of subtracting it, and ended up with 0.9, we can find the original number by reversing the incorrect operation. Let's ...
Question: Suppose several monsters are trying to attack. If you shoot 4 times at a monster, 3 shots remain, and if you try to shoot 5 times, then you lack 6 shots. How many monsters are there? Answer: Let's denote the number of monsters as \( M \) and the number of shots you have as \( S \). From the given information...
Question: Seven classes play soccer. If they play against each other once, how many matches are there in total? Answer: If seven classes play against each other once, we can calculate the total number of matches using the formula for combinations without repetition, which is: \[ \text{Number of matches} = \frac{n \tim...
Question: The stationery shop sold all 15 bundles of notebooks in 5 days. If each bundle contained 40 notebooks, how many notebooks did you sell on average per day? Answer: To find out the average number of notebooks sold per day, we first need to calculate the total number of notebooks sold. Since there were 15 bundle...
Question: There are five numbers 10, 11, 12, 13, and 14. What is the product of the second largest number and the second smallest number? Answer: The second largest number among 10, 11, 12, 13, and 14 is 13. The second smallest number is 11. The product of the second largest number (13) and the second smallest number...
Question: A bucket full of water weighs 320 kilograms (kg). After using 1/2 of the water, the bucket weighs 175 kilograms (kg). What is the weight of the empty bucket in kilograms (kg)? Answer: Let's denote the weight of the empty bucket as \( B \) kilograms. When the bucket is full of water, it weighs 320 kg. After u...
Question: The average of 7 numbers is 7. If you take one of these numbers and change it to 9, the average is 8. What was the original number before changing? Answer: Let's denote the original number that was changed as x. The sum of the original 7 numbers is 7 * 7 = 49. When one of these numbers is changed to 9, the ...
Question: The airport is 300 kilometers (km) away from the house. Find the remaining distance after 2 hours when Jinwoo leaves home in a car traveling at 60 kilometers (km) per hour. Answer: If Jinwoo is traveling at a speed of 60 kilometers per hour, then in 2 hours he would have covered a distance of: Distance = Spe...
Question: You have two chances to pick fruit from a basket that contains one apple, one peach, one pear, one melon, and one strawberry. How many orders of fruit can there be? Answer: To solve this problem, we need to calculate the number of ways to pick two different fruits from the basket in any order. Since the order...
Question: You need to add 41 to a number, but mistakenly added 14, and got 68. Find the sum of a number and its correctly calculated value. Answer: Let's call the original number "x". When you mistakenly added 14 to x, you got 68: x + 14 = 68 To find the original number x, we subtract 14 from 68: x = 68 - 14 x = 54 ...
Question: Find the number of numbers less than or equal to 0.4 among 0.8, 1/2, 0.3, and 1/3. Answer: To find the number of numbers less than or equal to 0.4 among the given numbers, we need to compare each number to 0.4. The given numbers are: 0.8, 1/2, 0.3, and 1/3. Let's compare each number to 0.4: 1. 0.8 is great...
Question: Yujeong arranged several colored balls on the desk. If the red, blue, yellow, purple and white balls are arranged in this order, what color is the first ball? Answer: The first ball in the order is red.
Question: Jian has 5,000 won, Doyun has 2,000 won, Harin has 8,000 won, and Joowon has 4,000 won. Who is the 3rd richest person? Answer: To determine the 3rd richest person, we need to rank them according to the amount of won they have: 1. Harin: 8,000 won 2. Jian: 5,000 won 3. Joowon: 4,000 won 4. Doyun: 2,000 won T...
Question: How many three-digit numbers are there in which each digit has only odd numbers less than or equal to 3? Answer: To form a three-digit number with each digit being an odd number less than or equal to 3, we have two choices for each digit: 1 or 3. Since there are three digits in the number, and each digit has...
Question: When tossing two different coins, calculate the numbers of cases where both tails come up. Answer: When tossing two different coins, there are four possible outcomes: 1. The first coin comes up heads (H) and the second coin comes up heads (H). 2. The first coin comes up heads (H) and the second coin comes up...
Question: Bottles of milk are 18 less than slices of bread, and cookies are 27 more than slices of bread. If there are 58 slices of bread, how many bread, bottles of milk, and cookies are there in total? Answer: If there are 58 slices of bread, then: Bottles of milk = Slices of bread - 18 Bottles of milk = 58 - 18 Bot...
Question: Jimin drank 0.7 liters (L) of juice. Eunji drank 1/10 liter (L) less than Jimin. Yoongi drank 4/5 liters (L), and Yuna drank 0.2 liters (L) more than Jimin. Who drank the most juice? Answer: To find out who drank the most juice, we need to calculate the amount of juice each person drank. Jimin drank 0.7 lite...
Question: A hardware store sells wire for 200 won for 0.1 meter (m). How many meters (m) of wire can you buy with 1200 won? Answer: To calculate how many meters of wire you can buy with 1200 won, we need to determine the price per meter and then divide the total amount of money you have by the price per meter. The pri...
Question: You are trying to find the number of vertices of a shape. If this figure is a cube, find the number of vertices. Answer: A cube has 8 vertices.
Question: The number of first-year students attending Woojung High School is 468 less than the number of non-first-year students. If the number of non-first year students is 954, how many students attend Woojung High School? Answer: If the number of non-first-year students is 954 and the number of first-year students i...
Question: Among 1.4, 9/10, 1.2, 0.5, and 13/10, find how many numbers are less than or equal to 1.1. Answer: To compare these numbers, we need to express them in the same format. Let's convert the fractions to decimal form: 9/10 = 0.9 13/10 = 1.3 Now we have the list of numbers in decimal form: 1.4, 0.9, 1.2, 0.5, 1....
Question: There are 68 soccer balls, which are 12 less compared to volleyballs and 23 more than basketballs. How many soccer balls, volleyballs, and basketballs are there altogether? Answer: Let's denote the number of soccer balls as S, the number of volleyballs as V, and the number of basketballs as B. According to t...
Question: When A is divided by 9, the quotient is 2 and the remainder is 6. Find out the value of A. Answer: To find the value of A, we can use the formula for division: A = (Quotient × Divisor) + Remainder Given that the quotient is 2 and the remainder is 6 when A is divided by 9, we can plug these values into the f...
Question: Find the length in centimeters (cm) of a side of an equilateral triangle with length 9/20 centimeters (cm) and a regular pentagon with the same perimeter. Answer: First, let's find the perimeter of the equilateral triangle. Since all sides of an equilateral triangle are equal, the perimeter is simply the leng...
Question: Consider a rectangle whose long side is 1 meter (m) and whose short side is 2/8 meter (m) shorter than the long side. What is the sum of the lengths of the four sides of this rectangle in meters (m)? Answer: The long side of the rectangle is 1 meter. The short side is 2/8 meter shorter than the long side, so ...
Question: When you multiply a number by 6, you get 72. What number do you get when you add 8 to the number? Answer: To find the number that when multiplied by 6 gives 72, you divide 72 by 6: 72 ÷ 6 = 12 So the number is 12. Now, to find the number you get when you add 8 to this number: 12 + 8 = 20 Therefore, when ...
Question: Three out of five digits 0, 1, 2, 3, and 4 were chosen to make a three-digit odd number. If you can use the same number multiple times, how many odd numbers can you make? Answer: To form a three-digit odd number, we need to consider that the last digit (the units place) must be an odd number to make the entir...
Question: While Toy (A) is larger than (B), it is smaller than (C). If Toy (B) is bigger than Toy (D) and Toy (C) is smaller than Toy (E), which toy is the biggest? Answer: Toy (E) is the biggest. Here's the reasoning: 1. Toy (A) is larger than (B) but smaller than (C). 2. Toy (B) is bigger than (D). 3. Toy (C) is sm...
Question: Woo-gyeong is 9 centimeters (cm) shorter than Eun-mi. If Woo-gyeong's height is 1 meter (m) and 35 centimeters (cm), how many meters (m) is Eun-mi's height expressed as a decimal number? Answer: First, let's convert Woo-gyeong's height to centimeters to make it easier to calculate. Since 1 meter is equal to 1...
Question: Students playing basketball are four times as much as students jumping rope. If the number of students jumping rope is 6, how many students are playing basketball? Answer: If the number of students jumping rope is 6 and the number of students playing basketball is four times that number, then the number of st...
Question: Find the number of ways in which a card numbered 1 through 9 is drawn and multiplied by 21 is greater than 84 multiplied by 2. Answer: First, let's find the number that 84 multiplied by 2 is: 84 * 2 = 168 Now, we want to find the number of ways a card numbered 1 through 9 can be drawn and multiplied by 21 t...
Question: There are Seoraksan, Jirisan, Hallasan, and Baekdusan. Jirisan is 207 meters (m) higher than Seoraksan. Hallasan is 252 meters (m) higher than Seoraksan. Baekdusan is 839 meters (m) higher than Jirisan. Find the difference in height between Seoraksan and Baekdusan. Answer: Let's denote the height of Seoraksan...
Question: Hoseok added a number to 56 and got 110. Find the number. Answer: To find the number Hoseok added to 56 to get 110, we need to subtract 56 from 110. 110 - 56 = 54 So, the number Hoseok added to 56 is 54.
Question: Four children (a), (b), (c), and (d) are competing in a running race. (c) is faster than (b) and (b) is slower than (d). If (d) is slower than (a) and (c) is slower than (d), which child is the slowest? Answer: Given the information: 1. (c) is faster than (b) 2. (b) is slower than (d) 3. (d) is slower than (...
Question: You want to plant trees at intervals of 3.1 meters (m) in a garden with a width of 27.9 meters (m). Find how many trees you can plant. However, the thickness of the wood is not considered. Answer: To find out how many trees you can plant at intervals of 3.1 meters in a garden that is 27.9 meters wide, you wou...
Question: When you multiply a number by 4, you get 166.08. What is the value of a number divided by 4? Answer: First, let's find the original number by dividing 166.08 by 4: 166.08 ÷ 4 = 41.52 Now, to find the value of this number divided by 4, we divide 41.52 by 4: 41.52 ÷ 4 = 10.38 So, the value of the number div...
Question: When there are three numbers: 0.8, 1/2, and 9, what would be the smallest one among the numbers that are greater than 2? Answer: Among the three numbers 0.8, 1/2 (which is 0.5), and 9, the only number that is greater than 2 is 9. Therefore, the smallest number among those that are greater than 2 is 9.
Question: The multiplication of the five-digit number ABCDE and 3 is 111111. Find the sum of A, B, C, D, and E. Answer: Let's denote the five-digit number as \( ABCDE \), where \( A, B, C, D, \) and \( E \) are its digits. According to the problem, when we multiply this number by 3, we get 111111. So, we have: \[ 3 \t...
Question: Minyeong has drawn the largest circle that can be drawn inside a square with an area of 400 square centimeters (cm2). If pi is 3.1, how many square centimeters (cm2) is the area of the circle Minyeong drew? Answer: To find the area of the circle Minyeong drew, we first need to determine the diameter of the ci...
Question: Yoongi got 4, Yuna 5, and Jungkook got the quotient of 6 divided by 3. Who got the smallest number? Answer: Jungkook got the quotient of 6 divided by 3, which is 2. Since Yoongi got 4 and Yuna got 5, Jungkook got the smallest number, which is 2.
Question: Make a rectangle out of a wire that is 52 centimeters (cm) long. What is the maximum area of a rectangle that can be made? Answer: To find the maximum area of a rectangle with a given perimeter, we need to determine the dimensions that will give us the largest possible area. The area of a rectangle is given b...
Question: The car will spend 19 liters (l) of gas while traveling 9 kilometers (km). Find how many liters (l) of gas should be spent per 1 kilometer (km). Answer: To find out how many liters of gas should be spent per 1 kilometer, you need to divide the total amount of gas spent by the total distance traveled. So, yo...
Question: 30 students in Minju's class have their own attendance numbers from 1 to 30. Among the students in Minju's class, students who are 160 centimeters (cm) or taller are students 1, 3, 7, 10, 23, and 27, and students who weigh 50 kilograms (kg) or more are students 1, 9, 11, 20, and 23. How many students are 160 ...
Question: Jaewoong lined up the students in the class in a square shape with 10 people on each row and column. How many students are at the perimeter? Answer: If Jaewoong lined up the students in a square shape with 10 people on each row and column, the perimeter would consist of the students on the outer rows and colu...
Question: Which of the five-digit numbers is the greatest common multiple of 9, 6, and 2? Answer: To find the greatest common multiple of 9, 6, and 2, we first need to understand that a common multiple is a number that is a multiple of all the given numbers. However, since multiples are infinite, there is no "greatest"...
Question: There is a cuboid with a volume of 1380000000 cubic centimeters (cm3). What is the height of the cuboid in meters (m), if the surface area of its base is 115 square meters (m2)? Answer: First, let's convert the volume from cubic centimeters to cubic meters. Since 1 cubic meter is equal to 1,000,000 cubic cent...
Question: yellow and blue marbles are mixed in the box. There are a total of 913 marbles in the box, and the number of yellow marbles is 514. Find how many yellow marbles are more than blue marbles. Answer: To find out how many more yellow marbles there are than blue marbles, we first need to determine the number of bl...
Question: There are Sora, Heesu, and Jiyeon. Sora has cards with 4 and 6 written on them, Heesu has cards with 7 and 5 written on them, and Jiyeon has cards with 3 and 8 written on them. Who has the greatest sum of cards? Answer: To find out who has the greatest sum of cards, we need to add the numbers on the cards for...
Question: There are a total of 129 persimmons and tangerines. How many persimmons are there if there are 43 fewer persimmons than tangerines? Answer: Let's denote the number of persimmons as P and the number of tangerines as T. According to the problem, we have two pieces of information: 1. The total number of persim...
Question: If you divide the width of a rectangular wall by 30 centimeters (cm), it is divided by 8, and if you divide the height by 30 centimeters (cm), it is divided by 5. Find the size of the wall in square meters (m2). Answer: Let's denote the width of the wall as W cm and the height of the wall as H cm. According ...
Question: There is a piece of colored paper in the shape of a square with sides of 20 centimeters (cm). I divided the length of each side into thirds and cut them out with small pieces of colored paper. Find the area of the newly created small colored paper to two decimal places. Answer: If you divided each side of the...
Question: You folded the crane using 12 sheets of colored paper, and at the end, only 9 sheets left. Find how many sheets were prepared at the beginning. Answer: If you folded the crane using 12 sheets of colored paper and ended up with 9 sheets left, it means you used 12 sheets for the crane and still had 9 sheets tha...
Question: The sum of the legs of chickens and pigs in Yumi's farm is 48. If there are 9 pigs on the farm, how many chickens are there? Answer: Let's denote the number of chickens as C and the number of pigs as P. We know that P = 9. Each pig has 4 legs, and each chicken has 2 legs. The total number of legs for pigs ca...
Question: If AB82-9C9=493D and A, B, C, D are different numbers, find A. Answer: To solve for A, we need to perform a subtraction operation where AB82 - 9C9 = 493D, and A, B, C, D are different digits. Let's start by looking at the ones place: 2 - 9 = D (Since 2 is less than 9, we need to borrow from the tens place, ...
Question: Find the number of diagonals in an 18-sided figure with all side lengths and all angles equal in measure. Answer: To find the number of diagonals in an n-sided polygon, you can use the formula: Number of diagonals = n(n - 3) / 2 In this case, the polygon is an 18-sided figure (an octadecagon), so n = 18. Pl...
Question: What is the smallest three-digit number that is a multiple of 5 and a multiple of 8 and a multiple of 2? Answer: To find the smallest three-digit number that is a multiple of 5, 8, and 2, we need to find the least common multiple (LCM) of these numbers. However, since 8 is a multiple of 2 (8 = 2 x 4), any num...
Question: You had to add 48 to a number, but you mistakenly subtract it, and the result was 52. Find the result of the correct calculation. Answer: Let's call the original number \( x \). According to the mistake, you subtracted 48 instead of adding it, and the result was 52. So the equation for the mistake is: \( x ...
Question: A square-shaped piece of colored paper was cut into several rectangles measuring 5 centimeters (cm) wide and 7 centimeters (cm) long. What is the minimum length in centimeters (cm) of one side of the square? Answer: To determine the minimum length of one side of the square, we need to find the smallest square...
Question: There are 48 roses. The red rose is 3/8 of the total. Yellow roses are 5/16 of the total. How many more red roses are there than yellow roses? Answer: First, let's find out how many red roses there are. Since the red roses are 3/8 of the total, we can calculate the number of red roses by multiplying the total...
Question: A 20 centimeters (cm) high fishbowl, with a square base and sides of 20 centimeters (cm) has been filled with water a height of 15 centimeters (cm). If you pour water into this fishbowl from a cube-shaped container with an edge of 10 centimeters (cm), how high in centimeters (cm) will the water rise compared ...
Question: There are 12 white rabbits and 9 black rabbits. If 8 of them are females, how many male rabbits are there? Answer: There are a total of 12 white rabbits + 9 black rabbits = 21 rabbits. If 8 of them are females, then the number of male rabbits would be the total number of rabbits minus the number of female ra...
Question: What is the total number of diagonals that can be drawn in a hexagon? Answer: To find the total number of diagonals in a 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 hexagon, n = 6. So, we can plug this into the formula: Number o...
Question: Jungkook has 3 boxes with 2 balls in them. How many balls does Jungkook have? Answer: Jungkook has 3 boxes, and each box contains 2 balls. To find the total number of balls, you multiply the number of boxes by the number of balls in each box: 3 boxes * 2 balls/box = 6 balls Jungkook has 6 balls in total.
Question: There are chocolates with five numbers written on them: 25, 17, 21, 34, and 32. Among them, the older brother ate the chocolate with the largest number written on it, and the younger brother ate the chocolate with the smallest number written on it. What is the difference between the numbers written on the cho...
Question: A is a single digit number. Rounding 73A94 to the nearest thousand gives it 74000. Find the number of all possible numbers in A. Answer: To round the number 73A94 to the nearest thousand, we need to look at the hundreds digit, which is A in this case. If A is 5 or greater, the number will round up to 74000. I...
Question: Jungkook has 0.8 written on his card, Yoongi has 1/2 written on his card, and Yoojeong has 0.9 written on her card. Find the number of people who have numbers less than or equal to 0.3 written on their cards. Answer: Based on the information provided, none of the three people mentioned (Jungkook, Yoongi, and ...
Question: There are five numbers 9/10, 1.8, 2, 1, and 11/5. Of these, write the number greater than 1 and less than 2 including the decimal point. Answer: The numbers greater than 1 and less than 2 including the decimal point are: 1.8 (which is the same as 18/10 or 9/5)