Question: Colin ran his first mile in 6 minutes. He ran his next two miles in 5 minutes each and finished his 4th mile in 4 minutes. What was the average time it took him to run a mile?
Answer: His first mile was in 6 minutes, then 5 minutes, another 5 minutes and his final mile was 4 minutes so it took him 6 + 5 + 5 + 4 = 20 minutes. It took 20 minutes to run 4 miles so his average time was 20 / 4 = 5 minutes per mile. The answer is 5.
[Question]Elida has 5 letters while Adrianna has 2 less than twice the number of letters Elida has. What's 10 times the average number of letters in both names?
[Answer]Twice the number of letters Elida has is 2 * 5 = 10. 2 less than twice the number of letters Elida has is 10 - 2 = 8. The total number of letter in both names is 8 + 5 = 13. The average number of letters in the name Elida and Adrianna is 13 / 2 = 6.5. 10 times the average number of letters in both names is 10 * 6.5 = 65. The answer is 65.
Q: Levi and his brother were playing basketball. Levi had scored 8 times and his brother had scored 12 times. Levi was determined to beat his brother by at least 5 baskets. How many more times does Levi have to score in order to reach his goal if his brother scores another 3 times?
A: Altogether, Levi's brother scores 12 + 3 = 15 times. If Levi wants to beat him by 5, he needs to score a total of 15 + 5 = 20 times. Levi needs to score another 20 - 8 = 12 times. The answer is 12.
Question: In the fall, 20,000 high school students apply to Harvard University for college. In the spring, 5% of those 20,000 students are accepted to the university. Of the students who are accepted, 90% choose to attend the university, and the other 10% choose to go to other schools. How many students choose to attend Harvard University?
Answer: The number of students accepted to the university is 20,000 * 0.05 = 1,000 students. The number of students who choose to attend the university is 1,000 * 0.9 = 900 students. The answer is 900.
[Question]Ali had a stock of 800 books in his Room. He sold 60 on Monday, 10 on Tuesday, 20 on Wednesday, 44 on Thursday and 66 on Friday. How many books were not sold?
[Answer]We look first for the total number of books that were sold: 60 + 10 + 20 + 44 + 66 = 200 books. So the total number of books that were not sold is: 800 200 = 600 books. The answer is 600.
[Question]At a shop in Japan, women's T-shirts are sold every 30 minutes for $18, and men's T-shirts are sold every 40 minutes for $15. This shop is open from 10 am until 10 pm. How much does the shop earn selling T-shirts per week?
[Answer]
First, the shop is open 12 hours * 60 minutes = 720 minutes per day. So, 720 / 30 = 24 women's T - shirts sold per day. The shop earns 24 * $18 = $432 selling women's T - shirts per day. Similarly, 720 / 40 = 18 men's T - shirts are sold per day. The shop earns 18 * $15 = $270 selling men's T - shirts per day. The shop earns $432 + $270 = $702 per day selling T - shirts. The shop earns $702 * 7 = $4914 per week. The answer is 4914.