Question: Dorothy spent $53 to buy doughnut ingredients. If she made 25 doughnuts and sells each for $3, how much was her profit?
Answer: She was able to earn 25 x $3 = $75 for the doughnuts. Therefore, Dorothy's profit is $75 - $53 = $22. The answer is 22.
[Question]The math questions in a contest are divided into three rounds: easy, average, and hard. There are corresponding points given for each round. That is 2, 3, and 5 points for every correct answer in the easy, average, and hard rounds, respectively. Suppose Kim got 6 correct answers in the easy; 2 correct answers in the average; and 4 correct answers in the difficult round, what are her total points in the contest?
[Answer]Kim got 6 points / round x 2 round = 12 points in the easy round. She got 2 points / round x 3 rounds = 6 points in the average round. She got 4 points / round x 5 rounds = 20 points in the difficult round. So her total points is 12 points + 6 points + 20 points = 38 points. The answer is 38.
Q: A salesman bought a case of 48 backpacks for $576. He sold 17 of them for $18 at the swap meet, 10 were sold to a department store for $25 each. If the remainder were sold for $22 each. How much was the salesman's profit?
A: The salesman sold 17 bags for 17 bags x $18 / bag = $306. He sold 10 more for 10 bags x $25 / bag = $250. Thus far he has sold 17 bags + 10 bags = 27 bags. Therefore he sold 48 bags - 27 bags = 21 bags for $22 each. 21 bags were sold for 21 bags x $22 / bag = $462. In total the salesman made $306 + $250 + $462 = $1018. The salesman made $1018 - $576 = $442 in profit. The answer is 442.
Question: Selena reads a book with 400 pages. Harry reads a book with 20 fewer than half the number of pages Selena's book has. How many pages are in the book of Harry?
Answer: Half the number of pages of Selena is 400 / 2 = 200. Therefore, Harry's book has 200 - 20 = 180 pages. The answer is 180.
[Question]Madeline needs $1200 to pay rent, $400 for groceries, $200 for medical expenses, and $60 for utilities. She also wants to save $200 in case of an emergency. She makes $15 per hour at her job. How many hours will Madeline need to work this month?
[Answer]Madeline needs 1200 + 400 + 200 + 60 + 200 = $2060 to pay all of her bills. She will need to work $2060 / $15 per hour = 137.33 hours. She will need to work 138 hours to pay all of her bills. The answer is 138.
[Question]Andy gets a cavity for every 4 candy canes he eats. He gets 2 candy canes from his parents and 3 candy canes each from 4 teachers. Then he uses his allowance to buy 1/7 as many candy canes as he was given. How many cavities does he get from eating all his candy canes?
[Answer]
First find how many candy canes Andy gets from his teachers: 3 canes / teacher * 4 teachers = 12 canes. Then add the number of candy canes he gets from his parents: 12 canes + 2 canes = 14 canes. Then divide that number by 7 to find the number of canes he buys: 14 canes / 7 = 2 canes. Then add the number of candy canes he gets from each source to find the total number: 2 canes + 14 canes = 16 canes. Then divide the total number of candy canes by the number of candy canes it takes to get one cavity to find the number of cavities Andy gets: 16 canes / 4 canes / cavity = 4 cavities. The answer is 16.