[Question]Thirty students run in a charity race to raise money for the hurricane victims. Ten of the students raised $20 each. The rest of the students raised $30 each. How much did the students raise in all?
[Answer]Ten students raised a total of $20 x 10 = $200. There are 30 - 10 = 20 students who raised $30 each. Twenty students raised a total of $30 x 20 = $600. Therefore, the students raised a total of $200 + $600 = $800. The answer is 800.
Q: Luisa drives 10 miles to the grocery store, 6 miles to the mall, 5 miles to the pet store, then 9 miles back home. One gallon of gas can be used to drive 15 miles. If one gallon of gas costs $3.50, what is the total cost of the gas for Luisa’s entire trip?
A: Luisa drives a total of 10 + 6 + 5 + 9 = 30 miles. Luisa uses 30 / 15 = 2 gallons of gas for her trip. The total cost of the gas for Luisa’s trip is 2 * $3.50 = $7. The answer is 7.
Question: There are 7 mL of solution in each of 6 test tubes. Dr. Igor takes all of the solution and then evenly distributes it into 3 beakers. How many mL of solution are in each beaker?
Answer: 7 * 6 = 42 mL. 42 / 3 = 14 mL. Each beaker holds 14 mL of solution. The answer is 14.
[Question]If you buy 2 packs of 500 mL milk, it will cost $2.50. If you buy them individually, they will cost $1.30 each. How much is your total savings from buying ten sets of 2 packs of 500 mL milk?
[Answer]The price per 500 mL milk from the 2 packs is $2.50 / 2 = $1.25. This means that for each pack of 500 mL milk, you can save $1.30 - $1.25 = $0.05. Ten sets of 2 packs mean 10 x 2 = 20 packs of 500 mL of milk. So, your total savings will be $0.05 x 20 = $1. The answer is 1.
Q: Gretchen draws caricatures in the park on the weekends. She charges $20.00 per drawing. If she sold 24 on Saturday and 16 on Sunday, how much money did she make?
A: She drew 24 on Saturday and 16 on Sunday for a total of 24 + 16 = 40 drawings. She charges $20.00 per drawing and she drew 40 caricatures so she made $20 * 40 = $800. The answer is 800.
Question: A boat carrying 20 sheep, 10 cows and 14 dogs capsized. 3 of the sheep drowned. Twice as many cows drowned as did sheep. All of the dogs made it to shore. How many total animals made it to the shore?
Answer:
The boat had 20 - 3 = 17 sheep make it to shore. 3 sheep drowned, so 2 * 3 = 6 cows drowned. 10 cows on the boat - 6 drowned = 4 cows made it to the shore. 17 sheep + 4 cows + 14 dogs = 35 animals made it to shore. The answer is 35.