She has 180 minutes to do work because 3 times 60 equals 180. She has already spent 150 minutes on homework because 45 plus 30 plus 50 plus 25 equals 150. She has 30 minutes to finish her project because 180 minus 150 equals 30.
The answer: 30
Reverse engineering the question: Porche has 3 hours to get all her homework done. Her math homework takes her 45 minutes. Her English homework takes her 30 minutes. Her science homework takes her 50 minutes. Her history homework takes her 25 minutes. She also has a special project due the next day. How much time does she have left to get that project done?


Reasoning and answer: At 7 weeks old, the puppy weighed 6 pounds, but doubled in weight by week 9 to reach a weight of 6 * 2 = 12 pounds. It doubled in weight again at 3 months old to reach a weight of 12 * 2 = 24 pounds. It doubled in weight again at 5 months old to reach a weight of 24 * 2 = 48 pounds. And it reached its full adult weight by adding another 30 lbs to reach a final weight of 48 + 30 = 78 pounds.
The answer: 78
What was the question?
Question: Bert's golden retriever has grown tremendously since it was a puppy. At 7 weeks old, the puppy weighed 6 pounds, but doubled in weight by week 9. It doubled in weight again at 3 months old, and doubled again at 5 months old. Finally, the dog reached its final adult weight by adding another 30 pounds by the time it was one year old. What is the dog's full adult weight, in pounds?


If the price of an additional bear drops by fifty after the first purchase, the price of each additional bear is $4.00 - $0.50 = $3.50. Since Wally bought 101 bears, he was charged fifty cents less on 101 - 1 = 100 bears. The total cost for the 100 bears is 100 * $3.50 = $350. For the 101 bears, Wally paid a total of $350 + $4 = $354.
The answer: 354
Reverse engineering the question: Wally buys bears at the park. A bear is priced at $4.00 for the first bear and a discount of 50 cents per bear is given after that. How much does Wally pay for 101 bears?


Reasoning and answer: Andy will be 2 * 6 = 12. Now he is 12 - 5 = 7. So Andy is 7 - 6 = 1 year older than Rahim.
The answer: 1
What was the question?
Question: In 5 years, Andy will be twice as old as Rahim is now. Rahim is 6 now. How much older is Andy than Rahim, right now, in years?


First find the total cook time for the steaks: 3 steaks * 6 minutes / steak = 18 minutes. Then add the waffles' cook time to find the total cook time: 18 minutes + 10 minutes = 28 minutes.
The answer: 28
Reverse engineering the question: Carla can cook a batch of waffles in 10 minutes and chicken-fried steak in 6 minutes. How long will it take her to cook 3 steaks and a batch of waffles?


The number of books borrowed on Friday is higher by 40 * 40 / 100 = 16 books. There are 5 days from Monday to Friday inclusive, so Krystian borrows an average of 5 * 40 = 200 books during that time. With Friday's increase in borrowings, during one week Krystian borrows 200 + 16 = 216 books.
The answer: 216
Reverse engineering the question:
Krystian works in the library. He borrows an average of 40 books every day. Every Friday, his number of borrowed books is about 40% higher than the daily average. How many books does he borrow in a week if the library is open from Monday to Friday?