Come up with a question and reasoning that would justify this answer: 360
Question and rationale: The question is: Big Dig Mining Company mines three different types of ore: copper, iron, and nickel. Across all their mines, 10% of their output is nickel, 60% is iron, and the rest is copper. They mine 720 tons of nickel a day. How many tons of copper does Big Dig Mining Company mine daily?
Step-by-step reasoning process: Let R be the total ore output of the company. Of Big Dig's output, 100 - 10 - 60 = 30% is nickel. Since 720 is 60% of 100% of their output, 720 / R = 60 / 100. Thus, Big Dig mines R = 100 * 720 / 60 = 1200 tons of ore daily. Therefore, Big Dig mines 1200 * 30 / 100 = 360 tons of copper daily.

Come up with a question and reasoning that would justify this answer: 80
Question and rationale: The question is: 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?
Step-by-step reasoning process: 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,.

Come up with a question and reasoning that would justify this answer: 1000
Question and rationale: The question is: Rica's group won in a dance competition. She got 3/8 of the prize money. From Rica's prize money, she spent 1/5 of it and is now left with $300. How much was the prize money that her group won?
Step-by-step reasoning process: Rica is left with 1 - 1 / 5 = 4 / 5 of her prize money which is equal to $300. Since 4 / 5 is worth $300, then 1 / 5 is worth $300 / 4 = $75. So, Rica got $75 x 5 = $375 from their prize money which is 3 / 8 of the total prize. Since 3 / 8 is equal to $375, then 1 / 8 is worth $375 / 3 = $125. So, the total prize money is $125 x 8 = $1000.

Come up with a question and reasoning that would justify this answer: 2050
Question and rationale:
The question is: John gets his pool cleaned every 3 days. It cost $150 each time and he gives the guy a 10% tip each time he comes to clean. Then twice a month he needs to use $200 of chemicals. How much does his pool cost a month?
Step-by-step reasoning process: He gets his pool cleaned 30 / 3 = 10 times a month. Each time he gets it cleaned he tips 150 * .1 = $15. So he pays 150 + 15 = $165. So he pays 165 * 10 = $1650 a month on cleaning. The chemicals cost 200 * 2 = $400. So in total, he pays 1650 + 400 = $2050.