[Question]Christina has 3 snakes. 1 snake is 2 feet long. Another snake is 16 inches long. The last snake is 10 inches long. How many inches are all of her snakes combined?
[Answer]The first snake is 24 inches because there are 12 inches in a foot. The snakes are 24 + 16 + 10 = 50 inches long. The answer is 50.
Q: Each turtle lays a clutch of 20 eggs. If 40% of the eggs successfully hatch, how many hatchlings do 6 turtles produce?
A: First find the number of eggs that each turtle successfully hatches: 20 eggs * 40% = 8 eggs. Then multiply the number of eggs per turtle by the number of turtles to find the total number of eggs: 8 eggs / turtle * 6 turtles = 48 turtles. The answer is 48.
Question: Louie obtained 80% on a math quiz. He had 5 mistakes. How many items were there on the math quiz?
Answer: Louie got 100% - 80% = 20% of the total items incorrect, which is equal to 5 items. So 1% is equal to 5 / 20 = 1 / 4 of an item. Hence, the total number of items, represented by 100%, on the math quiz was 1 / 4 of an item x 100 = 25. The answer is 25.
[Question]Xavier plays football with his friends. During 15 minutes Xavier can score 2 goals on average. How many goals on average is Xavier able to score, when the match lasted for 2 hours?
[Answer]Two hours means 2 * 60 = 120 minutes. So in 2 hours, there are with 120 / 15 = 8 groups of 15 minutes. So on average Xavier can score 8 * 2 = 16 goals. The answer is 16.
Q: There are many CDs in the store. The rock and roll CDs are $5 each, the pop CDs are $10 each, the dance CDs are $3 each, and the country CDs are $7 each. Julia wants to buy 4 of each, but she only has 75 dollars. How much money is she short?
A: Rock and Roll CDs will be 5 * 4 = 20 dollars. Pop CDs will be 10 * 4 = 40 dollars. Dance CDs will be 3 * 4 = 12 dollars. Country CDs will be 7 * 4 = 28 dollars. In total Julia would need 20 + 40 + 12 + 28 = 100 dollars. Julia is short 100 - 75 = 25 dollars. The answer is 25.
Question: There are 20 students in a class. Only one-fourth of the students stayed in the classroom while the rest went to the playground. Of those who went to the playground, one-third are boys. How many girls are there on the playground from this class?
Answer:
Out of the 20 students, 20 x 1 / 4 = 5 students stayed in the classroom. While 20 - 5 = 15 students went to the playground. Out of these 15 students, 15 x 1 / 3 = 5 are boys. Therefore, 15 - 5 = 10 girl students from this class are in the playground. The answer is 10.