Q: A school bought 20 cartons of pencils at the start of school. Pencils come in cartons of 10 boxes and each box costs $2. The school also bought 10 cartons of markers. A carton has 5 boxes and costs $4. How much did the school spend in all?
A: The school bought 20 x 10 = 200 boxes of pencils. The pencils cost 200 x $2 = $400. The school bought 10 x 5 = 50 boxes of markers. The markers cost 50 x $4 = $200. Thus, the school spent a total of $400 + $200 = $600. The answer is 600.
Question: Last week, Charles bought a t-shirt for $30, a backpack for $10, and a blue cap for $5. The store gave him a discount and, in total, he only spent $43. How much of a discount did they give him, in dollars?
Answer: The purchases he made totaled $30 + $10 + $5 = $45. He should pay $45, but he only paid $43, so $45 - $43 = $2 was the discount they gave him. The answer is 2.
[Question]Karen is considering her winter coat options. One coast costs $300 and will last for 15 years. The other coat costs $120 and will last for five years. How much money would Karen save over 30 years by buying the more expensive cost?
[Answer]First find the number of cheaper coats Karen will have to purchase over 30 years: 30 years / 5 years / coat = 6 coats. Then multiply that number by the cost of one cheaper coat to find the total cost of that option: 6 coats * $120 / coat = $720. Then find the number of more expensive coats Karen will have to purchase over 30 years: 30 years / 15 years / coat = 2 coats. Then multiply that number by the cost of one expensive coat to find the total cost of that option: 2 coats * $300 / coat = $600. Then subtract the total cost of the more expensive coats from the total cost of the less expensive coats to find the difference: $720 - $600 = $120. The answer is 120.
Q: Zane purchases 2 polo shirts from the 40% off rack at the men's store. The polo shirts are $50 each at the regular price. How much did he pay for the shirts?
A: At regular price, the polo shirts are 2 x $50 = $100. At 40% off, he gets a discount of , $100 x 40% = $40. With this discount, the polo shirts cost $100 - $40 = $60. The answer is 60.
Question: Jack and Jill race up the hill to see who gets there fastest. Jack ran up the first half of the hill in 19 seconds. He finished running up the hill 7 seconds before Jill did. If Jill finished the race in 32 seconds, how long did it take Jack to run up the second half of the hill?
Answer: Since Jack was faster than Jill, his total running time must have been 32 - 7 = 25 seconds. Subtracting the the time he spent running up the first half of the hill shows that it took 25 - 19 = 6 seconds to run up the second half of the hill. The answer is 6.
Q: Fred spent half of his allowance going to the movies. He washed the family car and earned 6 dollars. What is his weekly allowance if he ended with 14 dollars?
A:
Before washing the car Fred had $14 - $6 = $8. Fred spent half his allowance for the movies, so 2 * $8 = $16 allowance. The answer is 16.