Reasoning and answer: Since 5 rooms have 4 windows, this accounts for 20 windows because 4 * 5 = 20 windows. Since 8 rooms have 3 windows, this accounts for 24 windows because 8 * 3 = 24 windows. There are 78 windows left over because 122 - 20 - 24 = 78. Therefore, there are 39 rooms with 2 windows because 78 / 2 = 39.
The answer: 39
What was the question?
Question: Every room in a building has at least two windows and a maximum of 4 windows. There are 122 windows total. If 5 rooms have 4 windows and 8 rooms have 3 windows, how many rooms in the building have 2 windows?


John has 15 snakes * 2 = 30 monkeys. John has 30 monkeys - 5 = 25 lions. John has 25 lions + 8 = 33 pandas. John has 33 pandas / 3 = 11 dogs. John has 15 + 30 + 25 + 33 + 11 = 114 animals.
The answer: 114
Reverse engineering the question: John wants to start a zoo. He has 15 snakes. He has twice as many monkeys as he does snakes. He has 5 fewer lions than he does monkeys.  John has 8 more pandas than he does lions. John has 1/3 as many dogs as he does pandas. How many total animals does John have?


Reasoning and answer: Spike hunts 3 * 5 = 15 crickets in the afternoon and evening. Hence, he hunts 5 + 15 = 20 crickets per day.
The answer: 20
What was the question?
Question: Spike the bearded dragon eats crickets to get protein in his diet. He hunts 5 crickets every morning and three times that over the afternoon and evening, munching on leafy greens and other vegetation in between. How many crickets does Spike hunt per day?


Olaf scored three times more points than his dad, which means he scored 7 * 3 = 21 points. So in total, Olaf and his dad scored 21 + 7 = 28 points.
The answer: 28
Reverse engineering the question: Olaf is playing a game with his dad. He scored three times more points than his dad, who scored 7 points. How many points did they score in total?


Reasoning and answer: Tony walks 3 miles at 3 miles per hour for 3 / 3 = 1 hour. Tony also runs 10 miles at 5 miles per hour for 10 / 5 = 2 hours. Thus, each day he exercises for 1 + 2 = 3 hours. Over the course of one week, he exercises for 3 * 7 = 21 hours.
The answer: 21
What was the question?
Question: Tony exercises every morning by walking 3 miles carrying a 25-pound backpack, then he runs another 10 miles without the backpack. If he walks at a speed of 3 miles per hour and runs at a speed of 5 miles per hour, how many hours each week does he spend exercising?


Reasoning and answer: First find the time it takes Jill to run up the hill: 900 feet / 9 feet / second = 100 seconds. Then find the time it takes Jill to run down the hill: 900 feet / 12 feet / second = 75 seconds. Then add the two times to find Jill's total time: 100 seconds + 75 seconds = 175 seconds.
The answer: 175
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.
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Jill can run up a hill at 9 feet/second and down a hill at 12 feet/second. How long does it take her to run up and down a 900 foot hill?