Twice the number of Aaron's brothers is 4 * 2 = 8. Bennett has 8 - 2 = 6 brothers.
The answer: 6
Reverse engineering the question: Aaron has four brothers. If the number of Bennett's brothers is two less than twice the number of Aaron's brothers, what is the number of Bennett's brothers?
Reasoning and answer: For pencils with erasers, the store received a total of 200 * 0.8 = $160. For regular pencils, the store received 40 * 0.5 = $20. And for short pencils only 35 * 0.4 = $14. In total, the store made 160 + 20 + 14 = $194 from selling these pencils.
The answer: 194
What was the question?
Question: In a stationery store, there are three kinds of pencils. A pencil with an eraser, which costs $0.8 each, a regular pencil for $0.5 each, and a short pencil for $0.4 each. This store was able to sell 200 pencils with an eraser, 40 regular pencils, and 35 short pencils. How much money did the store make from these sales?
3 / 5th of 20 liters of water is 20 * (3 / 5) = 12 liters. 5 / 6th of 18 liters of vinegar is 18 * (5 / 6) = 15 liters. 12 liters of water mixed with 15 liters of vinegar gives 12 + 15 = 27 - liter mixture.
The answer: 27
Reverse engineering the question: In a dye-making process, a young lady mixes 3/5th of 20 liters of water with 5/6th of 18 liters of vinegar. How many liters of the mixture are obtained?
Reasoning and answer: If Jared counted 300 cars, and Ann counted 15% more, then Ann counted 1.15 * 300 = 345 cars. If Ann counted 7 cars more than their friend Alfred, then Alfred counted 345 - 7 = 338 cars. The total number of cars counted by all of them will be 338 + 345 + 300 = 983 cars.
The answer: 983
What was the question?
Question: Jared counted 15% fewer cars than his sister Ann while they were watching the road from the school, and Ann counted 7 more cars than their friend Alfred. If Jared counted 300 cars, how many cars did all of them count?
Phil starts with 10 books and loses 2, for 10 - 2 = 8 books. Each of Phil's remaining books has 100 pages, so he has 8 * 100 = 800 pages worth of books.
The answer: 800
Reverse engineering the question: Phil has 10 books that are all 100 pages each. He moves to a new home and during the move, 2 books are lost. How many pages worth of books does Phil have left?
The $15 is 1 - 1 / 4 = 3 / 4 of the money left. Since 3 / 4 is equal to $15, then 1 / 4 is equal to $15 / 3 = $5. So Lucy had $5 x 4 = $20 left after losing 1 / 3 of her money. Hence, $20 is 1 - 1 / 3 = 2 / 3 of the money that Lucy had at the beginning. Since 2 / 3 is equal to $20, then 1 / 3 is equal to $20 / 2 = $10. Therefore, Lucy had $10 x 3 = $30 at the beginning.
The answer: 30
Reverse engineering the question:
Lucy lost one-third of her money. She then spent one-fourth of the remainder, and only left with $15. How much money did Lucy have at the beginning?