Reasoning and answer: We start with the initial numbers of students, 40 and multiply that by .8 for 40 * 0.8 = 32 who own puppies. That the number of students with puppies, 32, and multiply that by .25 to find out how many own both puppies and parrots, 32 * 0.25 = 8 who own puppies and parrots. The answer is 8.
The answer: 8
What was the question?
Question: In Professor Plum's biology class there are 40 students. Of those students, 80 percent have puppies. Of those who have puppies, 25% also have parrots. How many students have both puppies and parrots?
Maria goes to the coffee shop twice a day. If she orders 3 cups of coffee each time she goes to the coffee shop, it means she orders 2 * 3 = 6 cups of coffee a day.
The answer: 6
Reverse engineering the question: Maria goes to the coffee shop 2 times a day. Every time she goes to the coffee shop, she orders 3 cups of coffee. How many cups of coffee does she order per day?
Reasoning and answer: He has to read 350 pages a week because 7 x 50 = 350. He has read 262 pages because 43 + 65 + 28 + 70 + 56 = 262. He has to read 88 pages on Saturday because 350 - 262 = 88.
The answer: 88
What was the question?
Question: Berry wants to make sure he reads an average of 50 pages a day. This week he read 43 pages on Sunday, 65 pages on Monday, and 28 pages on Tuesday. He had a soccer game and fell asleep early on Wednesday so he read nothing. On Thursday he read 70 pages, and on Friday he read 56 pages. How many pages does he have to read on Saturday to reach his goal?
The park is 2,000,000 square feet because 1000 * 2000 = 2,000,000. Thus, there are 100,000 trees in the park because 2,000,000 / 20 = 100,000.
The answer: 100000
Reverse engineering the question: A park is 1000 feet long and 2000 feet wide. If there is 1 tree per 20 square feet, how many trees are there in the park?
Reasoning and answer: Each dog eats 1 / 2 x 2 = 1 pound of dog food each day. So the three dogs eat a total of 1 x 3 = 3 pounds each day. That is 3 x 7 = 21 pounds in a week. Therefore, 30 - 21 = 9 pounds of food are left after a week.
The answer: 9
What was the question?
Question: Melody has three dogs. Each dog eats 1/2 of a pound of dog food twice a day. If Melody bought 30 pounds of dog food, how many pounds of dog food are left after a week?
Reasoning and answer: Santino has 2 * 10 = 20 papaya fruits. Santino has 3 * 20 = 60 mango fruits. In total, Santino has 20 + 60 = 80 fruits.
The answer: 80
What was the question?
Question:
Santino has 2 papaya trees and 3 mango trees. If each papaya tree produces 10 papayas and each mango tree produces 20 mangos, how many fruits does Santino have in total?