He increases the length to 13 + 2 = 15 feet. He increases the width to 18 + 2 = 20 feet. So the rooms are 15 * 20 = 300 square feet. So he has 1 + 3 = 4 rooms of this size. So he has 4 * 300 = 1200 square feet of rooms this size. He also has one room of size 300 * 2 = 600 square feet. So he has 1200 + 600 = 1800 square feet of rooms.
The answer: 1800
Reverse engineering the question: James has a room that is 13 feet by 18 feet. He increases each dimension by 2 feet. He then builds 3 more rooms of equal size and 1 room of twice that size. How much area does he have?
Reasoning and answer: In the first hour, the balloon will increase in volume by two - fifths of 500cm which is (2 / 5) * 500cm = 200cm. After the first hour, it will have a volume of (500 + 200)cm = 700cm. In the second hour, it will increase in volume by two - fifths of 700cm which is (2 / 5) * 700cm = 280cm. After the second hour, it's volume will be (700 + 280)cm = 980cm.
The answer: 980
What was the question?
Question: A special balloon increases by two-fifths of its previous volume every hour when placed under water. If its original volume is 500cm, what will its volume be after 2 hours underwater?
He catches 8 * 12 = 96 crabs a day. So he makes 96 * 5 = $480 per day. That means he makes 7 * 480 = $3360 a day.
The answer: 3360
Reverse engineering the question: Tom catches crabs for a living. He has 8 crab buckets that he checks every day. Each crab bucket gets 12 crabs. He sells each of these crabs for $5 each. How much money does he make per week?
Reasoning and answer: His car depreciated 18000 - 6000 = $12000. So he made a profit of 30000 - 12000 = $18000.
The answer: 18000
What was the question?
Question: Without factoring in the cost of depreciation for his car John made $30,000 doing Uber. When he finally traded in the car he bought for $18,000 he got $6000 back. What was his profit from driving Uber?
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?
Davante has 14 friends because 2 times 7 equals 14. Davante has 11 friends who are boys because 14 - 3 equals 11.
The answer: 11
Reverse engineering the question:
Davante has twice as many friends as there are days in the week. 3 of his friends are girls. How many friends does he have that are boys?