Brenda’s mice had 3 * 8 = 24 baby mice. She gave Robbie 24 / 6 = 4 mice. Thus, she sold 3 * 4 = 12 mice to the pet store. She had 24 - 12 - 4 = 8 mice remaining. She sold 8 / 2 = 4 as feeder mice. Thus, Brenda had 8 - 4 = 4 mice left.
The answer: 4
Reverse engineering the question: Brenda raises mice, and her adult mice recently had three litters of 8 each. She gave a sixth of the baby mice to her friend Robbie to keep as pets. She sold three times the number of babies she gave Robbie to a pet store. Half of the remaining mice were sold to snake owners as feeder mice. How many baby mice did Brenda have left?


Reasoning and answer: 5 hours in the studio is the same as 5 * 60 = 300 minutes. To record all of his songs, Elvis takes 12 * 10 = 120 minutes. After editing and recording 300 – 120 – 30 = 150 minutes are left to write all of his songs. Songwriting therefore took 150 / 10 = 15 minutes per song.
The answer: 15
What was the question?
Question: Elvis is releasing a new album with 10 songs, but he doesn't want to waste too much time on writing. He spends 5 hours in the studio, where he writes, records, and edits his songs. Each song takes 12 minutes to record, then it takes 30 minutes to edit all of his songs.  How many minutes did it take Elvis to write each song, if each song took the same amount of time to write?


The four cats weigh 48 pounds in total because 12 plus 12 plus 14.7 plus 9.3 equals 48. The average weight is 12 pounds because 48 divided by 4 is 12.
The answer: 12
Reverse engineering the question: Janele wants to figure out the average weight of her cats. She has 4 of them. The first two weigh 12 pounds each. The third weighs 14.7 pounds and the fourth weighs 9.3 pounds. What is their average weight?


Reasoning and answer: Last week Maya read 5 * 300 = 1500 pages of text. This week she doubled the result, so she read 2 * 1500 = 3000 pages. In total Maya read 1500 + 3000 = 4500 pages of text.
The answer: 4500
What was the question?
Question: Maya loves to read books. Last week she read 5 books. Each book had 300 pages of text. This week she read twice as much. How many pages did Maya read in total?


The guitar costs $100 every month for 12 months so it costs 100 * 12 = $1200. His dad is charging him 10% interest on the $1200 so interest comes to .10 * 1200 = $120.00. All total, Aaron will owe his father the price of the guitar, $1200 and the interest, $120 so 1200 + 120 = $1,320.00.
The answer: 1320
Reverse engineering the question: Aaron wants to purchase a guitar under a payment plan of $100.00 per month for 12 months. His father has agreed to lend him the entire amount for the guitar, plus a one-time 10% interest fee for the entire loan. With interest, how much money will Aaron owe his dad?


On Tuesday Matt worked 450 minutes / 2 = 225 minutes. On Wednesday Matt worked 300 minutes - 225 minutes = 75 minutes more.
The answer: 75
Reverse engineering the question:
On Monday, Matt worked for 450 minutes in his office. On Tuesday, he worked half the number of minutes he worked on Monday. On Wednesday, he worked for 300 minutes. How many more minutes did he work on Wednesday than on Tuesday.