Q: Jill is painting her 20 toenails and fingernails. She paints 6 of her nails purple, 8 of them blue, and the rest striped. What is the difference in percentage points between the percentage of nails painted blue and the percentage painted striped?
A: First find the total number of striped nails: 20 nails - 6 nails - 8 nails = 6 nails. Then divide the number of blue nails by the number of total nails and multiply by 100% to express the answer as a percentage: 8 blue nails / 20 total nails * 100% = 40%. Then divide the number of striped nails by the number of total nails and multiply by 100% to express the answer as a percentage: 6 striped nails / 20 total nails * 100% = 30%. Then subtract the percentage of striped nails from the percentage of blue nails to find the difference: 40% - 30% = 10%. The answer is 10.
Question: Valerie's cookie recipe makes 16 dozen cookies and calls for 4 pounds of butter. She only wants to make 4 dozen cookies for the weekend. How many pounds of butter will she need?
Answer: Her original recipe makes 16 dozen and she only needs 4 dozen so she needs to reduce the recipe by 16 / 4 = 4. For 4 dozen cookies, she needs to reduce her recipe by 4 and the original called for 4 pounds of butter so she now needs 4 / 4 = 1 pound of butter. The answer is 1.
[Question]A seminar is offered to a school for their teachers. The regular seminar fee is $150 but they offer a 5% discount if they register 2 days before the scheduled seminar. The school registered 10 teachers for the seminar a week before the schedule and it also released a $10 food allowance for each of the teachers. How much did the school spend in all?
[Answer]The school got a $150 x 5 / 100 = $7.50 seminar fee discount for each teacher. Each teacher's seminar fee costs $150 - $7.50 = $142.50. So, ten teachers' seminar fees cost $142.50 x 10 = $1425. The food allowance for 10 teachers amounts to $10 x 10 = $100. Therefore, the school spent a total of $1425 + $100 = $1525. The answer is 1525.
Q: Mike decides to buy a new camera. He wants to buy a top-of-the-line camera but he decides to wait for the new model to come out. The new model costs 30% more than the current model. The old camera cost $4000. He gets $200 off a $400 lens he bought. How much did he pay for the camera and lens?
A: The new camera cost 4000 * .3 = $1200 more than the old camera. So the camera cost 4000 + 1200 = $5200. The lens cost 400 - 200 = $200. So the total cost was 5200 + 200 = $5400. The answer is 5400.
Question: A jar of jellybeans has 14 blue jellybeans, 26 purple jellybeans and 40 orange jellybeans. If there are 200 jellybeans in the jar, how many are there of the red color?
Answer: Total of blue, purple, and orange jellybeans is 14 + 26 + 40 = 80. There are 200 - 80 = 120 red jellybeans. The answer is 120.
Q: A hardware store sold 10 graphics cards, 14 hard drives, 8 CPUs, and 4 pairs of RAM in one week. The graphics cards cost $600 each, hard drives cost $80 each, CPUs cost $200 each, and RAM cost $60 for each pair. How much money did the store earn this week?
A:
It earned 10 * 600 = 6000 dollars by selling graphics cards. It earned 14 * 80 = 1120 dollars by selling hard drives. It earned 8 * 200 = 1600 dollars by selling CPUs. It earned 4 * 60 = 240 dollars by selling RAM. Overall it earned 6000 + 1120 + 1600 + 240 = 8960 dollars this week. The answer is 8960.