Q: Beth is looking at her book collection and is wondering how many comic books she owns. She has 120 books and 65% are novels. 18 are graphic novels. The rest are comic books. What percentage of comic books does she own?
A: The proportion of graphic novels is .15 because 18 / 120 = .15. The percentage of graphic novels is 15 because 100 x .15 = 15. The percentage of comic books is 20 because 100 - 65 - 15 = 20. The answer is 20.
Question: Jim is wondering how many miles each gallon of gas gets him. His gas tank is 12 gallons. He has 2/3 of a tank left after he drives to and from work, which is 10 miles away from his house. How many miles per gallon does he get?
Answer: He used 1 / 3 of his tank because 1 - (2 / 3) = 1 / 3. He used 4 gallons of gas because 12 x (1 / 3) = 4. He drove 20 miles because 2 x 10 = 20. He gets 5 miles per gallon because 20 / 4 = 5. The answer is 5.
[Question]Rookie police officers have to buy duty shoes at the full price of $85, but officers who have served at least a year get a 20% discount. Officers who have served at least three years get an additional 25% off the discounted price. How much does an officer who has served at least three years have to pay for shoes?
[Answer]Cops that served a year pay $85 * 0.2 = $17 less. Cops that served a year pay $85 - $17 = $68. Cops that served at least 3 years get a $68 * 0.25 = $17 discount. Cops that served at least 3 years pay $68 - $17 = $51 for shoes. The answer is 51.
Q: During a fundraiser, each of the 20 members of a group sold candy bars which costs $0.50 each. If each member sold an average of 8 candy bars, how much money did they earn from their candy bars sales, in dollars?
A: The group was able to sell 20 x 8 = 160 candy bars. So, they got 160 x $0.5 = $80 from their candy bars sales. The answer is 80.
Question: Last night Kannon had 3 apples, a banana, and 4 oranges for dinner. Today she is planning to have 4 more apples than last night, 10 times as many bananas as she ate last night, and twice as many oranges as apples she'll have today. How many fruits would she have eaten so far in the two meals?
Answer: The total number of fruits that Kannon ate last is 3 apples + 1 banana + 4 oranges = 8. Since last night Kannon had 3 apples, today she'll eat 3 + 4 = 7 apples. She is also planning to eat 10 times as many bananas as she ate last night, a total of 1 * 10 = 10 bananas. Kannon will also eat twice as many oranges as apples she'll have today, which means she'll eat 7 * 2 = 14 oranges. Tonight Kannon will eat 14 oranges + 10 bananas + 7 apples = 31 fruits. In total, after tonight, Kannon would have eaten 31 + 8 = 39 fruits. The answer is 39.
Q: Toby is counting goldfish in the local pond. He knows that only 25% of goldfish are at the surface and the rest are too deep below the surface to be able to see. If he counts 15 goldfish, how many are below the surface?
A:
There are 60 goldfish because 15 / .25 = 60. 75% of the fish are below the surface because 100 - 25 = 75. There are 45 goldfish below the surface because 60 x .75 = 45. The answer is 45.