It would take one builder 8 x 3 = 24 days to build the cottage on his own. 6 builders can build the house in 24 / 6 = 4 days.
The answer: 4
Reverse engineering the question: If it takes 8 days for 3 builders to build a cottage. How long will it take 6 builders to build the same size cottage working at the same rate?
Reasoning and answer: First find the total number of degrees the candy needs to heat up: 240 degrees - 60 degrees = 180 degrees. Then divide that amount by the rate the candy heats up: 180 degrees / 5 degrees / minute = 36 minutes. Then find the number of degrees the candy needs to cool down: 240 degrees - 170 degrees = 70 degrees. Then divide that by the rate the candy cool down: 70 degrees / 7 degrees / minute = 10 minutes. Then add the time for the candy to heat to the time for it to cool to find the total time: 10 minutes + 36 minutes = 46 minutes.
The answer: 46
What was the question?
Question: Andy is making fudge. First he needs to raise the temperature of the candy mixture from 60 degrees to 240 degrees. Then he needs to cool it down to 170 degrees. If the candy heats at 5 degrees/minute and cools at 7 degrees/minute, how long will it take for the candy to be done (in minutes)?
Keaton can harvest his oranges every year is 12 / 2 = 6 times. So the total money he earns for his oranges every year is $50 x 6 = 300. He can harvest his apples 12 / 3 = 4 times in a year. So the total money he earns for the apple in a year is $30 x 4 = 120. Therefore, the total money he earns for his oranges and apples is $300 + $120 = $420.
The answer: 420
Reverse engineering the question: Keaton has a farm of oranges and apples. He can harvest his oranges every 2 months and can sell the harvest for $50. He can harvest his apples every 3 months and can sell this harvest for $30. How much money can Keaton earn every year?
Reasoning and answer: Janna wrote 400 + 150 = 550 words. Together, they wrote 400 + 550 = 950 words. They have 950 - 20 = 930 words left after omitting 20 words. Then 20 x 2 = 40 words were added during the editing. Overall, they have 930 + 40 = 970 words. Thus, they should add 1000 - 970 = 30 more words.
The answer: 30
What was the question?
Question: Yvonne and Janna were writing their 1000-word pair research paper. Yvonne was able to write 400 words while Janna wrote 150 more words than Yvonne. When they edited their paper, they removed 20 words and added twice as many words as they removed. How many more words should they add to reach the research paper requirement?
As the daily goal is 200mg and there are 7 days in a week, this means Ryan needs to take 7 * 200 = 1400mg in a week. As there is 50mg per pill, this means Ryan needs to take 1400 / 50 = 28 pills every week.
The answer: 28
Reverse engineering the question: Ryan is considering buying a new multivitamin brand. Each pill has 50 mg of Vitamin A in it. The recommended daily serving of Vitamin A is 200 mg. How many pills does Ryan need to hit the recommended amount for the week?
Five cupcakes cost 5 x $2 = $10. Six doughnuts cost 6 x $1 = $6. Four slices of apple pie cost 4 x $2 = $8. And, fifteen cookies cost 15 x $0.60 = $9. Therefore, Sophie spends $10 + $6 + $8 + $ 9 = $33.
The answer: 33
Reverse engineering the question:
Sophie buys five cupcakes at $2 each, six doughnuts at $1 each, four slices of apple pie at $2 per slice, and fifteen cookies at $0.60 each. How much does she spend in all?