The number of bicycle wheels is 2 × 20 = 40. The number of car wheels is 4 × 10 = 40. The number of motorcycle wheels is 2 × 5 = 10. There are 40 + 40 + 10 = 90 wheels in the garage.
The answer: 90
Reverse engineering the question: There are 20 bicycles, 10 cars and 5 motorcycles in the garage at Connor's house. How many wheels are there in the garage?


Reasoning and answer: When Jerry reads 30 pages on Saturday, he would be remaining with 93 - 30 = 63 pages. After reading an additional 20 pages on Sunday, he would be remaining with 63 – 20 = 43 pages.
The answer: 43
What was the question?
Question: Jerry has an interesting novel he borrowed from a friend to read over the weekend. The book has 93 pages. On Saturday, he reads 30 pages. On Sunday, he goes to church and comes back, sits down, and reads 20 pages of the book. How many pages are remaining before Jerry can finish the book?


Since there are 60 minutes in 1 hour, then Lisa walks for 1 x 60 = 60 minutes every day. For 60 minutes, Lisa walks 60 x 10 = 600 meters. Thus, she walks for 600 x 2 = 1200 meters in two days.
The answer: 1200
Reverse engineering the question: Lisa walks 10 meters each minute. Every day, she walks for an hour. How many meters will Lisa walk in two days?


Reasoning and answer: James has 3 * 6 candies = 18 candies. Rubert has 4 * 18 candies = 72 candies. So, the three of them have 6 candies + 18 candies + 72 candies = 96 candies.
The answer: 96
What was the question?
Question: Rubert has 4 times the number of candies James has. James has 3 times the number of candies Adam has. If Adam has 6 candies, how many candies do the three of them have in total?


First find how far Marsha drives to deliver the third package: 28 miles / 2 = 14 miles. Then find how many miles she drives total by adding the miles for the three legs of her journey: 14 miles + 28 miles + 10 miles = 52 miles. Then divide her total pay by the number of miles she drives to find her pay per mile: $104 / 52 miles = $2 / mile.
The answer: 2
Reverse engineering the question: Marsha works as a delivery driver for Amazon. She has to drive 10 miles to deliver her first package, 28 miles to deliver her second package, and half that long to deliver her third package. If she gets paid $104 for the day, how many dollars does she get paid per mile?


First find the distance between soccer practice and home by multiplying the distance between soccer practice and school by 2: 12 miles * 2 = 24 miles. Then find the total distance Carla drives by adding the length of each trip: 24 miles + 12 miles + 6 miles + 8 miles = 50 miles. Then find how many gallons of gas she needs by dividing the distance of the trip by her car's gas mileage: 50 miles / 25 mpg = 2 gallons. Then multiple the gallons of gas by the price per gallon to find the total cost: 2 gallons * $2.50 = $5.
The answer: 5
Reverse engineering the question:
Carla needs to drive her car to do a bunch of errands. She needs to drive 8 miles to the grocery store, 6 miles to pick up her kids from school, 12 miles to drop her kids off at soccer practice, and twice the distance from the school to soccer practice to get everyone home again. If Carla's car gets 25 miles per gallon, and gas costs $2.50, how much will Carla have to spend on gas for her trip?