[Question]Camden went swimming 16 times in March and Susannah went 24 times. If the number of times they went throughout the month was divided equally among 4 weeks, how many more times a week did Susannah swim than Camden?
[Answer]Camden went swimming 16 / 4 = 4 times a week. Susannah went swimming 24 / 4 = 6 times a week. Susannah went 6 - 4 = 2 more times a week than Camden. The answer is 2.
Q: A group of 300 athletes spent Saturday night at Ultimate Fitness Camp. The next morning, for 4 hours straight, they left the camp at a rate of 28 athletes per hour. Over the next 7 hours, a new group of athletes trickled into the camp at a rate of 15 athletes per hour. Immediately thereafter, the camp gate was shut and everyone went to bed. What is the difference in the total number of athletes in the camp over the two nights?
A: The number that left the camp on Saturday morning was 4 * 28 = 112 athletes. This means that in the camp there remained 300 - 112 = 188 athletes. The new group trickling in on Sunday morning comprised 7 * 15 = 105 athletes. The number that slept at the camp on Sunday night is therefore 188 + 105 = 293 athletes. Since there were 300 athletes on Saturday night, the difference is 300 - 293 = 7 athletes. The answer is 7.
Question: Tracy, Michelle, and Kati take a road trip that is a total of 1000 miles. Tracy drives 20 miles more than twice Michelle, and Michelle drives 3 times the amount that Katie drives. How many miles does Michelle drive?
Answer: Let x represent the number of miles Kati drives. Michelle:3x. Tracy:20 + 2(3x) = 20 + 6x. Total:x + 3x + 20 + 6x = 1000. 10x + 20 = 1000. 10x = 980. x = 98 miles. 3(98) = 294 miles. The answer is 294.
[Question]Mr. Grey is purchasing gifts for his family. So far he has purchased 3 polo shirts for $26 each; 2 necklaces for $83 each; and 1 computer game for $90. Since Mr. Grey purchased all those using his credit card, he received a $12 rebate. What is the total cost of the gifts after the rebate?
[Answer]Mr. Grey paid $26 / shirt x 3 shirts = $78 on polo shirts. He paid $83 / necklace x 2 necklaces = $166 on necklaces. So, he paid $78 + $166 + $90 = $334 for the gifts. After the rebate, the total cost of the gifts is now $334 - $12 = $322. The answer is 322.
Q: A pool has 48 blue tiles and 32 red tiles. If the pool needs 100 tiles to be completed, how many more tiles are needed?
A: The pool currently has 48 + 32 = 80 tiles. The pool needs 100 - 80 = 20 more tiles to be completed. The answer is 20.
Question: 55% of Toby's friends are boys and the rest are girls. If he has 33 friends who are boys, how many friends does he have who are girls?
Answer:
Toby has 60 friends because 33 / .55 = 60. 45% of his friends are girls because 100 - 55 = 45. He has 27 friends who are girls because 60 x .45 = 27. The answer is 27.