[Question]Will's mom gave him $74 to go shopping. He bought a sweater for $9, a T-shirt for $11 and a pair of shoes for $30. He then returned his shoes for a 90% refund. How much money does Will have left?
[Answer]Will paid $30 for his shoes but then returned them and got 90% of the money back, so he lost 10% of the money, which means 10 / 100 * $30 = $3 is gone. Will spent $9 + $11 + $3 = $23. Will started with $74 - $23 that he spent = $51 remaining. The answer is 51.
Q: Megan is an actress. She was the lead actress in 80% of her work. In total, Megan participated in 100 plays. How many times Megan was not the lead actress?
A: Megan was the lead actress in 100 * 80% = 80 plays. So Megan was not the lead actress in 100 - 80 = 20 plays. The answer is 20.
Question: Jordan decides to start an exercise program when he weighs 250 pounds. For the first 4 weeks, he loses 3 pounds a week. After that, he loses 2 pounds a week for 8 weeks. How much does Jordan now weigh?
Answer: He loses 3 pounds a week for 4 weeks for a total of 3 * 4 = 12 pounds. He loses 2 pounds a week for 8 weeks for a total of 2 * 8 = 16 pounds. All total he has lost 12 + 16 = 28 pounds. Jordan weighed 250 pounds and has lost 28 pounds so he now weighs 250 - 28 = 222 pounds. The answer is 222.
[Question]Peter has to walk 2.5 miles to get to the grocery store. If it takes him 20 minutes to walk one mile and he has walked 1 mile already, how many more minutes does he have to walk to reach it?
[Answer]Peter has to walk a remaining 2.5 total miles - 1 mile completed = 1.5 miles remaining. It will take him another 20 minutes * 1.5 miles remaining = 30 minutes to get to the grocery store. The answer is 30.
Q: A factory uses robots to manufacture batteries. For each battery that is made, it takes a robot 6 minutes to gather the materials for the battery and 9 minutes to create the battery. If the factory has 10 robots working on batteries at the same time, how many batteries can the robots manufacture in 5 hours?
A: For each battery that a robot makes, it takes 9 + 6 = 15 minutes to create the battery. In 60 minutes, one robot can make 60 / 15 = 4 batteries per hour. If the factory uses 10 robots at the same time, then they can produce 10 * 4 = 40 batteries per hour. At a rate of 40 batteries per hour, 10 robots can produce 40 * 5 = 200 batteries in 5 hours. The answer is 200.
Question: Every week of last month Paul tried out a new cake recipe. The first week, he followed a cake recipe that called for 24 cups of sugar. Each week after that, he reduced the amount of sugar by half. How much sugar did he use for the cake on the fourth week?
Answer:
On the 2nd week, Paul halved the first week's sugar, therefore he used 24 / 2 = 12 cups. The third week, Paul used 12 / 2 = 6 cups. The fourth week, he used 6 / 2 = 3 cups. The answer is 3.