The cost of the books is 5 × $2 = $10. Reggie has $48 − $10 = $38 left.
The answer: 38
Reverse engineering the question: Reggie's father gave him $48. Reggie bought 5 books, each of which cost $2. How much money does Reggie have left?


Reasoning and answer: Since November has 30 days, the town received 4 inches of rain for the first half of the month for 30 / 2 = 15 days. The total inches of rain that the town received for the 15 days is 15 * 4 = 60 inches. The rain falling in the town increased by 2 * 4 = 8 inches per day for the remaining half of the month. Therefore, for the rest of the month, the town received 8 * 15 = 120 inches of rain. The total amount of rain the town received in November is 120 + 60 = 180 inches.
The answer: 180
What was the question?
Question: In a northwestern town, it rained 4 inches per day during the first 15 days of November. For the remainder of the month, the average daily rainfall was twice the amount observed during the first 15 days. What is the total amount of rainfall for this town in November, in inches?


The amount paid to the teacher per day is 5 periods * $5 / period = $25 per day. The amount paid for 24 days is $25 / day * 24 days = $600. The total amount for 6 months is $600 * 6 = $3600.
The answer: 3600
Reverse engineering the question: A teacher teaches 5 periods a day and works 24 days a month. He is paid $5 per period. if he has been working for 6 months now how much has he earned in total?


Reasoning and answer: Alex gives his friends a total of 5 friends * 20 meters of silk = 100 meters of silk. This means he has 600 – 100 = 500 meters of silk left in storage. He can therefore make 500 meters of silk / 5 meters of silk per dress = 100 dresses.
The answer: 100
What was the question?
Question: Alex makes luxury dresses out of silk. Each dress needs 5 meters of silk and Alex has 600 meters of silk in storage. His friends also want to learn how to make these dresses so Alex gives all 5 of them 20 meters of silk each. He uses the rest to make dresses himself. How many dresses can Alex make?


He made $600.00 mowing yards, $250.00 for his birthday, $150.00 selling items and $150.00 doing odd jobs so he made 600 + 250 + 150 + 150 = $1,150.00. He made $1,150.00 and will save 40% so he saves 1150 * .40 = $460.00.
The answer: 460
Reverse engineering the question: Chad saves 40% of the money he earns/receives in a year. This year, he made $600 mowing yards and received $250.00 for his birthday/holidays. He also made $150.00 by selling some old video games and another $150.00 doing odd jobs. How much will he save?


First, we need to determine the length of John's workday if he decides to earn the bonus. We do this by performing 8 + 2 = 10 hours for his workday. Next, we need to determine his overall pay. We do this by performing 80 + 20 = 100 dollars a day. We then determine John's hourly rate by dividing his pay by the number of hours worked, performing 100 / 10 = 10 dollars an hour.
The answer: 10
Reverse engineering the question:
John works a job that offers performance bonuses. He makes $80 a day and works for 8 hours. He has the option of working hard to earn the performance bonus of an extra $20 a day, but the extra effort results in a 2-hour longer workday. How much does John make per hour if he decides to earn the bonus?