Question: A restaurant is offering a fundraiser one day where they donate $2 for every $10 donated by customers. The average customer donates 3 and there are 40 customers that day. How much does the restaurant donate?
Answer: Customer donated a total of $120 because 40 x 3 = 120. They got $10 a total of 12 times because 120 / 10 = 12. They donated $24 because 12 x 2 = 24. The answer is 24.
[Question]Cersei bought 50 cotton candies. She gave her brother and sister 5 cotton candies each, then gave the remaining one-fourth of them to her cousin. If she ate 12 cotton candies, how many cotton candies are left?
[Answer]Cersei gave a total of 5 x 2 = 10 cotton candies to her brother and sister. So, the total cotton candies left were 50 - 10 = 40. And she gave 1 / 4 x 40 = 10 cotton candies to her cousin. So, the total number of cotton candies left was 40 - 10 = 30. Therefore, the total number of cotton candies left after she ate 12 of them is 30 - 12 = 18. The answer is 18.
Q: Marla has a grid of squares that has 10 rows and 15 squares in each row. She colors 4 rows of 6 squares in the middle of the grid with red. She colors all squares on the first 2 and last 2 rows with blue. Then she colors the rest with green. How many squares does Marla color green?
A: There are 10 x 15 = 150 squares in a grid. 4 x 6 = 24 squares are colored red. There are 2 + 2 = 4 rows that are all blue. Thus, a total of 4 x 15 = 60 squares are colored blue. 24 + 60 = 84 squares are color red or blue. Therefore, 150 - 84 = 66 square are green. The answer is 66.
Question: Mary's sheep can run 12 feet per second, and her sheepdog can run 20 feet per second. A sheep standing 160 feet away from the sheep dog bolts, and the dog runs after it. How many seconds does it take the dog to catch the sheep?
Answer: First find how much faster the dog is than the sheep: 20 feet / second - 12 feet / second = 8 feet / second. Then divide the distance the dog needs to run by the speed difference: 160 feet / 8 feet / second = 20 seconds. The answer is 20.
[Question]Josie's mom gave her a $20 bill and asked her to go to the store for a few items. The list included a carton of milk for $4.00, a loaf of bread for $3.50, a box of laundry detergent for $10.25 and 2 pounds of bananas that were $0.75 per pound. Her mom also gave her a coupon for $1.25 off of the laundry detergent. At checkout, the clerk told her the milk was 1/2 off today. How much money did Josie have left over after she bought all of the groceries?
[Answer]The milk cost $4.00 but was on sale for 1 / 2 off so 4 * .50 = $2.00. She bought 2 pounds of bananas at $0.75 per pound so 2 * .75 = $1.50. She had a $1.25 coupon off of laundry detergent so 10.25 - 1.25 = $9.00. When you add all of her purchases together then 2 + 1.50 + 3.50 + 9.00 = $16.00. She paid with a $20 bill so 20 - 16 = $4 left over. The answer is 4.
[Question]Jane is trying to decide whether to buy a house or a trailer. A house costs $480,000 and a trailer costs $120,000. Each loan will be paid in monthly installments over 20 years. How much more is the monthly payment on the house compared to the trailer?
[Answer]
First find how many months the loans last: 20 years * 12 months / year = 240 months. Then divide the cost of the house by the number of payments to find the monthly payment before interest: $480,000 / 240 months = $2000 / month. Then do the same thing to find the monthly payment before interest on the trailer: $120,000 / 240 months = $500 / month. Then subtract the cost of the trailer payment from the cost of the house payment to find the difference: $2000 / month - $500 / month = $1500 / month. The answer is 1500.