Question: There are 60 passengers on a bus. Children make up 25% of the bus riders. How many adults are on the bus?
Answer: The number of children on the bus is 60 passengers * 25% = 15 passengers. The number of adults on the bus is 60 passengers - 15 passengers = 45 passengers. The answer is 45.

Question: Micah has 7 fish in his aquarium. Kenneth has three times as many fish in his aquarium and Matthias has 15 less fish than Kenneth in his aquarium. How many fish do the boys have in total?
Answer: Kenneth has 7 x 3 = 21 fish in his aquarium. Matthias has 21 - 15 = 6 fish in his aquarium. In total, the boys have 7 + 21 + 6 = 34 fish. The answer is 34.

Question: James drives 30 mph for half an hour and then twice as long for twice the speed. How far did he drive in total?
Answer: His first drive was 30 * .5 = 15 miles. The next leg was .5 * 2 = 1 hour. The speed of the trip was 30 * 2 = 60 mph. So he drove 60 * 1 = 60 miles. So in total he drove 60 + 15 = 75 miles. The answer is 75.

Question: Ginger is weaving mats out of colored straw. Each mat takes 20 red straws, 30 orange straws, and half as many green straws as orange straws. How many straws does she need to make 10 mats?
Answer:
First find the number of green straws each mat needs: 30 orange straws / 2 orange straws / green straw = 15 green straws. Then find the total number of straws in each mat: 15 straws + 20 straws + 30 straws = 65 straws. Then multiply that number by the number of mats to find the total number of straws Ginger needs: 65 straws / mat * 10 mats = 650 straws. The answer is 650.