Question: In a town where 60% of the citizens own a pet, half own a dog and 30 own a cat. How many citizens are in the town?
Answer: Half the pet - owners have a cat because 1 - 1 / 2 = 1 / 2. There are 60 pet owners because 30 / (1 / 2) = 60. The town has 100 citizens because 60 / .6 = 100. The answer is 100.
[Question]There are 4,000 jelly beans in a jar. If three fourths of the jelly beans are red, and one quarter of the red jelly beans are coconut flavored, how many jelly beans are coconut flavored?
[Answer]There are 4000 / 4 * 3 = 3000 red jelly beans. There are 3000 / 4 = 750 coconut flavored jelly beans. The answer is 750.
Q: Krystian works in the library. He borrows an average of 40 books every day. Every Friday, his number of borrowed books is about 40% higher than the daily average. How many books does he borrow in a week if the library is open from Monday to Friday?
A: The number of books borrowed on Friday is higher by 40 * 40 / 100 = 16 books. There are 5 days from Monday to Friday inclusive, so Krystian borrows an average of 5 * 40 = 200 books during that time. With Friday's increase in borrowings, during one week Krystian borrows 200 + 16 = 216 books. The answer is 216.
Question: Tom's rabbit can run at 25 miles per hour. His cat can run 20 miles per hour. The cat gets a 15-minute head start. In hours, how long will it take for the rabbit to catch up?
Answer: The cat got a 15 / 60 = .25 hour head start. That means it ran 20 * .25 = 5 miles. The rabbit goes 25 - 20 = 5 mph faster than the cat. So it takes 5 / 5 = 1 hour for the rabbit to catch up. The answer is 1.
[Question]There are 80 men in a race. 1/4 of the men tripped and were unable to finish. 2/3 of the remaining men were dehydrated and 1/5 of those dehydrated men couldn't finish the race. How many men finished the race?
[Answer]1 / 4 of 80 men is 80 / 4 = 20 men. 20 men couldn't finish, so 80 - 20 = 60 men remain. 60 * 2 / 3 = 40 men were dehydrated. 1 / 5 of the dehydrated couldn't finish 40 * 1 / 5 = 8 men. 60 - 8 = 52 men finished the race. The answer is 52.
[Question]A bag was originally priced at $500. A week after, the price was reduced by 5%. Since the bag was still not sold, the selling price was reduced by 4% a month after. How much was the total reduction from the original selling price?
[Answer]
The original price of the bag was reduced by $500 x 5 / 100 = $25. So its selling price after a week was $500 - $25 = $475. The price of the bag was again reduced by $475 x 4 / 100 = $19. So, its selling price now is $475 - $19 = $456. Therefore, the total reduction from the selling price is $500 - $456 = $44. The answer is 44.