Reasoning and answer: On the weekend, Jeff works 3 / 3 = 1 hour each day. On the weekdays, he spends 4 * 3 = 12 hours working each day. Thus, he spends 2 * 1 + 5 * 12 = 62 hours working each week.
The answer: 62
What was the question?
Question: Jeff spends three times as many hours on the weekend catching up with his Facebook pals as he does working. Monday through Friday, however, he spends four times as many hours working as he does catching up. If he spends 3 hours every day catching up, how many hours does he spend working in an entire week?
He got 20 - 8 = 12 gifts on his 13th birthday. So he got 20 + 12 = 32 total gifts.
The answer: 32
Reverse engineering the question: John received 20 gifts on his 12th birthday. He received 8 fewer gifts on his 13th birthday. How many total gifts did he receive between those two birthdays?
Reasoning and answer: The total bill before taxes or gratuities was $80 for the steak + $10 for the wine = $80 + $10 = $90. If the tax is 10%, then the taxes paid were $90 * 10% = $9. That means that the total bill before gratuities was $90 + $9 = $99. If the final bill was $140, then you were charged $140 - $99 = $41 for gratuities.
The answer: 41
What was the question?
Question: A shady restaurant is charging customers gratuities after taxes without them being aware. If my total bill was $140, the sales tax in my city is 10%, I ordered a NY Striploin for $80, and I ordered a glass of wine for $10, how much did they charge me for gratuities?
Jerome has 20 classmates on the list, and has half as many out of school friends on there so he has 20 / 2 = 10 out of school friends on the contact list. He has 2 parents and 1 sister on the contact list, for 2 + 1 = 3 family members on the contact list. Adding the classmates, out of school friends and family members together we get 20 + 10 + 3 = 33 people on his contact list.
The answer: 33
Reverse engineering the question: Jerome has 20 classmates on his cell phone contact list. He has half as many out of school friends as classmates on his contact list. He also has his two parents and his sister on his contact list. How many people are on Jerome's contact list?
Reasoning and answer: 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
What was the question?
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: If there are 2000 pies of all kinds, and 68% of all pies are eaten with forks, there are 68 / 100 * 2000 = 1360 pies eaten with forks. The number of pies that are not eaten with pie is 2000 - 1360 = 640.
The answer: 640
What was the question?
Question:
68% of all pies are eaten with forks. If there are 2000 pies of all kinds, how many of the pies are not eaten with forks?