[Question]At the supermarket, the price paid for oranges is proportional to the mass purchased. Annie paid $6 for 2 kg of oranges. How much will Annie pay for 12 kg of oranges?
[Answer]The price of 1 kg of oranges is $6 / 2 kg = $3 / kg. So Ali will pay 12 kg * $3 / kg = $36 for 12 kg of oranges. The answer is 36.
Q: Irene shares half of a small apple with her dog every day. A small apple weighs about 1/4 of a pound. She can currently buy apples for $2.00 a pound. How much will she spend so that she and her dog have enough apples to last for 2 weeks?
A: There are 7 days in a week and she needs apples for 2 weeks so that's 7 * 2 = 14 days. She shares an apple with her dog every day so for 14 days so she needs 1 * 14 = 14 apples. Each apple weighs 1 / 4 of a pound and she needs 14 apples so that's .25 * 14 = 3.5 pounds of apples. She needs 3.5 pounds of apples and they are on sale for $2.00 a pound so she will spend 3.5 * 2 = $7.00 for apples. The answer is 7.
Question: Rachel drinks 2 glasses of water on Sunday and 4 glasses of water on Monday. Then she drinks 3 glasses of water every day for the next 4 days. One glass of water is 10 ounces of water. If Rachel wants to drink a total of 220 ounces of water in the week (Sunday to Saturday), how many glasses of water should she drink on Saturday?
Answer: From Sunday and Monday, Rachel drinks 2 + 4 = 6 glasses of water. From Tuesday to Friday, Rachel drinks 3 * 4 = 12 glasses of water. The total glasses of water she drinks from Sunday to Friday is 6 + 12 = 18 glasses of water. The total ounces of water she drinks from Sunday to Friday is 18 * 10 = 180 ounces. The ounces of water she should drink on Saturday is 220 - 180 = 40 ounces. The glasses of water she should drink on Saturday is 40 / 10 = 4 glasses of water. The answer is 4.
[Question]A man drives 60 mph for 3 hours. How fast would he have to drive over the next 2 hours to get an average speed of 70 mph?
[Answer]To have an average speed of 70 mph over 5 hours he needs to travel 70 * 5 = 350 miles. He drove 60 * 3 = 180 miles in the first 3 hours. He needs to travel another 350 - 180 = 170 miles over the next 2 hours. His speed needs to be 170 / 2 = 85 mph. The answer is 85.
Q: Jeff orders a Halloween costume. He has to put in a 10% deposit and then pay the rest when he picks it up. The costume is 40% more expensive than last year's costume, which cost $250. How much did he pay when picking it up, in dollars?
A: It cost 250 * .4 = $100 more than his old costume. So it cost 250 + 100 = $350. He left a 350 * .1 = $35 deposit. So he had to pay 350 - 35 = $315. The answer is 315.
Question: Roy spends 2 hours on sports activities in school every day. He goes to school 5 days a week. If he missed 2 days within a week, how many hours did he spend on sports in school that week?
Answer:
He goes to.school 5 days a week so if he misses 2 days within the week he was present for 5 - 2 = 3 days. He spends 2 hours every day for a total of 2 * 3 = 6 hours. The answer is 6.