[Question]Tony drives a car that gets 25 miles to the gallon. He drives 50 miles round trip to work 5 days a week. His tank holds 10 gallons. He begins the week with a full tank and when he runs out he fills up at the local gas station for $2 a gallon. How much money does Tony spend on gas in 4 weeks?
[Answer]First, we need to determine how many miles Tony drives in 4 weeks. We do this by performing 50 * 5 = 250 miles per week. Next, we multiply the weekly total by 4 by performing 4 * 250 = 1000 miles in 4 weeks. Now, we need to find out how many times Tony needs to fill up his gas tank. His gas tank holds enough gas to last 25 * 10 = 250 miles. This means in 4 weeks, he needs to fill up his tank 1000 / 250 = 4 times. Since Tony's gas tank holds 10 gallons, this means he needs to pay for 4 * 10 - 40 gallons of gas in a month. Since gas costs $2 a gallon, this means Tony spends 40 * 2 = $80 on gas every month,. The answer is 80.
Q: Maria is baking cookies for Sally. Sally says that she wants 1/4 of her cookies to have nuts in them, 40% to have chocolate chips in them, and the remainder to have nuts and chocolate chips in them. When she adds nuts to the cookies, she uses 2 nuts per cookie. If she makes 60 cookies, how many nuts does she need?
A: 35% of the cookies have nuts and chocolate chips because 100 - 25 - 40 = 35. 60% of the cookies have nuts in them because 25 + 35 = 60. She makes 36 cookies with nuts in them because 60 x .6 = 36. She needs 72 nuts because 36 x 2 = 72. The answer is 72.
Question: Elizabeth wants to buy the steak knives from a bridal registry as a wedding gift. The couple registered for 2 steak knife sets and each set contains 4 steak knives. If Elizabeth buys both sets and they cost $80.00 per set, how much does each single steak knife cost?
Answer: Each steak knife set has 4 steak knives and Elizabeth bought 2 sets so there are 4 * 2 = 8 steak knives in total. Each steak knife set costs $80.00 and she bought 2 sets so she spent $80 * 2 = $160.00. Both sets cost $160.00 and there are 8 knives in total so each knife costs 160 / 8 = $20.00 each. The answer is 20.
[Question]Kyle bikes for 2 hours to work every day. Ten times the time he takes to travel to work and back is the same as the cost of buying a pack of snacks (in dollars). How much will Ryan pay, in dollars, to buy 50 packs of snacks?
[Answer]A round trip to work and back takes 2 * 2 = 4 hours. Ten times the time Kyle takes to travel to work and back is the same as the cost of buying a pack of snacks, meaning the packs are sold at 4 * 10 = $40 each. Ryan will pay $40 * 50 = $2000 to buy 50 packs of snacks?. The answer is 2000.
Q: A group of bedbugs infested an old mattress. Every day, the number of bedbugs would triple. After four days, there were 810 bedbugs burrowing into the mattress. How many bedbugs did the group start with?
A: On the third day, there were one - third of the number of bedbugs as the fourth day, so there were 810 / 3 = 270 bedbugs. On the second day, there were one - third of the third day's bedbugs, so there were 270 / 3 = 90 bedbugs. On the first day, there were 90 / 3 = 30 bedbugs in the group to start with. The answer is 30.
Question: There are 336 books in a library. On Monday, 124 books are taken out. On Tuesday, 22 books are brought back. How many books are there now?
Answer:
At the end of Monday, there are 336 - 124 = 212 books left. At the end of Tuesday, there are 212 + 22 = 234 books. The answer is 234.