Since Cristian's house has ten rooms, he painted 3 / 5 * 10 = 6 rooms with green color. The number of rooms he painted with purple is 10 - 6 = 4 rooms. Since each room in the house has eight walls, the number of walls painted purple is 8 * 4 = 32.
The answer: 32
Reverse engineering the question: Johan has a ten-bedroom house with 8 walls in each room. He paints 3/5 of the rooms in the house green and paints the rest of the rooms with purple color. How many walls in the house did he paint purple?


Reasoning and answer: Let's say the number of men working at the company is x. Since there are 180 people, and the number of men is 20 fewer than the number of women, then x + x + 20 = 180. The total number of employees in the company is 2x + 20 = 180. 2x = 180 - 20. 2x = 160. The number of men is x = 160 / 2. There are x = 80 men in the company.
The answer: 80
What was the question?
Question: Lauryn owns a computer company that employs men and women in different positions in the company. How many men does he employ if there are 20 fewer men than women and 180 people working for Lauryn?


There are 12 / 2 = 6 birds left. There are 9 - 3 = 6 puppies left. There are 15 - 7 = 8 spiders left. The pet store owner has 5 + 6 + 6 + 8 = 25 animals left.
The answer: 25
Reverse engineering the question: A pet store owner had 12 birds, 9 puppies, 5 cats, and 15 spiders. Half the birds were sold and 3 puppies were adopted. Then, someone left the spider enclosure open and 7 of them went loose. How many animals does the pet store owner have left?


Reasoning and answer: The land will be divided into 1 (Jose) + 4 siblings = 5 pieces. So, Jose will have 20,000 / 5 = 4000 square meters of land.
The answer: 4000
What was the question?
Question: Jose bought 20,000 square meters of land and needs to divide it equally with his four siblings. How much land, in the square meters, will Jose have after dividing it with his siblings?


If the lorry is loaded with 20 bags of apples, each weighing 60 pounds, it will have an additional weight of 20 * 60 = 1200. The total weight of the lorry after being loaded with the bags of apples will be 500 + 1200 = 1700 pounds.
The answer: 1700
Reverse engineering the question: A lorry is 500 pounds when empty. What will its weight be if it's loaded with 20 bags of apples, each weighing 60 pounds?


He scored 4 * 6 = 24 points per game. So he scored 15 * 24 = 360 points from touchdowns. He also scored 2 * 6 = 12 points from the 2 point conversions. So he scored a total of 360 + 12 = 372 points. That means he beat the old record by 372 - 300 = 72 points.
The answer: 72
Reverse engineering the question:
James joins a football team and becomes the star. He scores 4 touchdowns per game and each touchdown is worth 6 points. There are 15 games in the season. He also manages to score 2 point conversions 6 times during the season. The old record was 300 points during the season. How many points did James beat the old record by?