Reasoning and answer: Originally the car parts would be a total of 80 * 7 = 560 dollars. Clark got a discount for 560 - 439 = 121 dollars.
The answer: 121
What was the question?
Question: An auto shop has a part that Clark needs for $80. Clark buys 7 of them and got a discount. If Clark only had to pay $439, how much was the discount?


Let’s first calculate what the apple trees produce: 30 trees * 150 kg / tree = 4500 kg. Then let's calculate what the peaches produce: 45 trees * 65 kg / tree = 2925 kg. We add these two masses: 4500 kg + 2925 kg = 7425 kg.
The answer: 7425
Reverse engineering the question: Apple and peach trees are planted in the orchard of the Grange Poser farm. The orchard has 30 apple trees that each give 150 kg of apples and 45 peach trees that each produce an average of 65 kg of fruit. What is the total mass of fruit harvested in this orchard?


Reasoning and answer: Jed is 25 - 10 = 15 years old now. So, Matt is 15 - 10 = 5 years old now. Thus, the sum of their present ages is 15 + 5 = 20.
The answer: 20
What was the question?
Question: Jed is 10 years older than Matt. In 10 years, Jed will be 25 years old. What is the sum of their present ages?


In 4 months, he will lose 3 x 4 = 12 kilograms. So his weight will be 97 – 12 = 85 kilograms.
The answer: 85
Reverse engineering the question: A boxer weighs 97 kg at 4 months from a fight. He is on a diet that allows him to lose 3 kg per month until the day of the fight. How much will he weigh on the day of the fight?


Reasoning and answer: Kelcie: 32 / 4 = 8 books. Greg: 9 + 2(8) = 25 books. Total:32 + 8 + 25 = 65 books.
The answer: 65
What was the question?
Question: Megan has read 32 books this year. Kelcie has read 1/4 the amount of books that Megan has read. Greg has read 9 more than twice the number of books that Kelcie has read. How many books total have Megan, Kelcie, and Greg read?


Reasoning and answer: We calculate 50% of 16 GB:. 50 / 100 * 16 GB = 0.5 * 16 GB = 8 GB. That leaves 16 GB - 8 GB = 8 GB available on this key.
The answer: 8
What was the question?
Question:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
On a 16 GB (gigabyte) capacity USB drive, 50% is already busy. Calculate the number of gigabytes still available.