Q: Kim spends $25,000 to open a store. She makes $4000 a month in revenue and her expenses are $1500 a month. How long would it take to pay back the cost to open the store?
A: Her profit is 4000 - 1500 = $2500. So it takes 25000 / 2500 = 10 months to make back the money. The answer is 10.
Question: A crayon factory makes 4 colors of crayons. They put 2 of each color crayon in each box. The factory produces enough crayons to fill 5 boxes per hour. How many crayons does the factory produce in 4 hours?
Answer: Each box contains 4 * 2 = 8 crayons. In an hour, they make 8 * 5 = 40 crayons. In 4 hours they make 4 * 40 = 160 crayons. The answer is 160.
[Question]Grandma Olga has 3 daughters and 3 sons. If all her daughters each have 6 sons, and each of her sons has 5 daughters, how many grandchildren does she have in total?
[Answer]From her daughters, Olga has 3 x 6 = 18 grandsons. From her sons, she has 3 x 5 = 15 granddaughters. Altogether, Olga has 18 + 15 = 33 grandchildren. The answer is 33.
Q: Chris has twelve marbles, and Ryan has twenty-eight marbles. If they put marbles together in a pile and then each takes away 1/4 of marbles from the pile, calculate the number of marbles remaining in the pile.
A: If Chris and Ryan put together their marbles in a pile, the pile will have 12 + 28 = 40 marbles. If they then take 1 / 4 of the marbles each, every person will receive 1 / 4 * 40 = 10 marbles. Both of them will have taken a total of 10 + 10 = 20 marbles. The number of marbles remaining in the pile is 40 - 20 = 20. The answer is 20.
Question: Liz roasts 2 16 pounds turkeys every Thanksgiving. She can only roast them 1 at a time because she has a small oven. She roasts each turkey for 15 minutes per pound. If dinner is served at 6:00 pm what is the latest time she can start roasting the turkeys?
Answer: She bakes a turkey for 15 minutes a pound and the turkey is 16 pounds so it takes 15 * 16 = 240 minutes. She has 2 turkeys to roast and one turkey takes 240 minutes to cook so 2 turkeys will take 2 * 240 = 480 minutes. There are 60 minutes in an hour and these turkeys will take 480 minutes to cook so that's 480 / 60 = 8 hours. In military time, 6:00 pm is 18:00 hours (12 hours + 6 hours) and it takes 8 hours to cook the turkeys so the latest she can start is 18 - 8 = 10:00 am. The answer is 10.
Q: Before Cameron broke his right arm, he was able to type 10 words per minute on his phone. After he broke his arm, he had to use his left hand for a while, and he could only type 8 words per minute. What is the difference between the number of words he could type in 5 minutes before and after he broke his arm?
A:
Before Cameron broke his hand he could type 5 × 10 = 50 words in 5 minutes. After he broke his hand he could only type 5 × 8 = 40 words in 5 minutes. The difference between the number of words he could type in 5 minutes before and after he broke his arm is 50 - 40 = 10 words. The answer is 10.