Question: Ali turned 8 years old this year, and is now 3 years older than Yusaf. If Umar is twice Yusaf’s age, how old is Umar?
Answer: If Ali is 3 years older, then Yusaf must be 8 – 3 = 5 years old. Umar is twice Yusaf’s age, so he must be 5 * 2 = 10 years old. The answer is 10.
[Question]Macy's is selling shirts that have been reduced to $6. This price is at 25% of the original price. What was the original price?
[Answer]The original price is x. The discount is 100% - 25% remaining = 75% discount. The discount is 75%, so the original price is x - .75x = .25x. The sale price is $6, so $6 = .25x, which is the same as 6 / .25 = x. X = $24. The answer is 24.
Q: Polly the parakeet tweets all day long. When she is happy, she tweets 18 times per minute. When she is hungry, she tweets 4 times per minute. And when she watches herself in the mirror, she tweets 45 times per minute. During a time period where she is happy for 20 minutes, hungry for 20 minutes, and watches her reflection for 20 minutes, what is the total number of times she will tweet?
A: In 20 minutes, she happy tweets for 20 * 18 = 360 times. In 20 minutes, she hungry - tweets for 20 * 4 = 80 times. In 20 minutes, she tweets at her reflection 20 * 45 = 900 times. Altogether, she tweets 360 + 80 + 900 = 1340 times. The answer is 1340.
Question: Leonard is 4 years younger than Nina who is half as old as Jerome. If the sum of their ages is 36, what is Leonard's age?
Answer: Let x be the age of Nina. So, Leonard's age is x - 4. And Jerome's age is 2x. Since the sum of their ages is 36, then the equation is x + x - 4 + 2x = 36. By combining like terms, the equation becomes 4x = 40. So the value of x which represents the age of Nina is x = 40 / 4 = 10. Therefore, Leonard is 10 - 4 = 6 years old. The answer is 6.
[Question]James prints out 2 books. They are each 600 pages long. He prints out double-sided and 4 pages per side. How many sheets of paper does he use?
[Answer]He printed 600 * 2 = 1200 pages. Each sheet of paper was 4 * 2 = 8 pages. So he used 1200 / 8 = 150 sheets of paper. The answer is 150.
[Question]A bird watcher records the number of birds he sees each day. One Monday he sees 70 birds. On Tuesday he sees half as many birds as he did on Monday. On Wednesday he sees 8 more birds than he did on Tuesday. How many total birds did the bird watcher see from Monday to Wednesday?
[Answer]
Monday:70. Tuesday:70 / 2 = 35. Wednesday:35 + 8 = 43. Total:70 + 35 + 43 = 148 birds. The answer is 148.