Question: Toby is filling his swimming pool for the summer. The pool normally takes 50 hours to fill. He knows his hose runs at 100 gallons per hour. Water costs 1 cent for 10 gallons. How many dollars does it cost to fill the pool?
Answer: The pool holds 5000 gallons of water because 50 x 100 = 5000. Every gallon costs $.001 because $.01 / 10 = $.001. It costs $5 to fill the pool because 5000 x $.001 = $5. The answer is 5.
[Question]On a moonless night, three fireflies danced in the evening breeze. They were joined by four less than a dozen more fireflies, before two of the fireflies flew away. How many fireflies remained?
[Answer]Four less than a dozen is 12 - 4 = 8. The three fireflies were joined by four less than a dozen more fireflies, for a total of 3 + 8 = 11 fireflies. Two flew away, leaving 11 - 2 = 9 fireflies remaining. The answer is 9.
Q: Fatima has a piece of cloth that is 100 square inches big. She has decided to cut the cloth in half. She plans on keeping half and donating the other half. If she does this 2 times, then how much cloth will she have donated?
A: The first cut will result in 100 / 2 = 50 square inches of fabric. The second cut will result in 50 / 2 = 25 square inches of fabric. Fatima will have donated a total of 50 + 25 = 75 square inches of fabric. The answer is 75.
Question: Harry decided to buy some balloons for his friend's birthday party. One balloon costs $0.5, and a pack of 10 balloons is cheaper and costs only $3. Finally, Harry wants to bring to the party exactly 14 balloons. How much did he need to pay for them?
Answer: To buy 14 balloons, Harry should buy one pack of 10, and 14 - 10 = 4 separate balloons. The price of 4 balloons is 4 * 0.5 = $2. In total, the pack and separate balloons would cost Harry in total 3 + 2 = $5. The answer is 5.
[Question]Jack has 42 pounds, 11 euros, and 3000 yen. If there are 2 pounds per euro and 100 yen per pound, how much does Jack have in yen?
[Answer]First convert the euros to pounds: 11 euros * 2 pounds / euro = 22 pounds. Then add that amount to the amount Jack has in pounds: 22 pounds + 42 pounds = 64 pounds. Then convert the pounds to yen: 64 pounds * 100 yen / pound = 6400 yen. Then add that amount to the amount Jack has in yen: 6400 yen + 3000 yen = 9400 yen. The answer is 9400.
[Question]Maiya has two sisters. The first sister is twice as old as Maiya. The first sister is 1 year younger than Maiya. Their average age is 5. How old is Maiya?
[Answer]
Their total age is 15 because 3 x 5 = 15. 15 - X - 2X - (X - 1) is equivalent to 16 = 4X. Maiya is 4 years old because 16 / 4 = 4. The answer is 4.