Question: Jim has a pail with rocks in it. The average weight of a rock is 1.5 pounds. A local rock collector agrees to pay him $4 for every pound of rocks. If he makes $60 off the sale, how many rocks were in the bucket?
Answer: There were 15 pounds of rocks in the bucket because 60 / 4 = 15. There were 10 rocks in the bucket because 15 / 1.5 = 10. The answer is 10.
[Question]A truck driver has to spend $2 per gallon of gas. She can drive 10 miles per gallon. She drives at a rate of 30 miles per hour. If she is paid $.50 per mile, how much money does she make if she drives for 10 hours?
[Answer]The truck driver drives for 10 hours at 30 miles per hour, so she drives 10 * 30 = 300 miles. Therefore, she needs 300 / 10 = 30 gallons of gas. This will cost her 30 * $2 = $60. She will make 300 * $.50 = $150. Thus, after paying for gas, she will make $150 - $60 = $90. The answer is 90.
Q: Tommy's mother lets him ride his bike 2 blocks north of his block, 3 blocks east, 2 blocks west, and 2 blocks south. His friend's father lets his friend ride his bike 80 square blocks. How many times greater is the area his friend can ride in compared to Tommy?
A: Tommy's area is 5 blocks wide because 3 + 2 = 5. His area is 4 blocks tall because 2 + 2 = 4. The total area is 20 square blocks because 5 x 4 = 20. His friend's area is 4 times bigger because 80 / 20 = 4. The answer is 4.
Question: In April, Tank gathered 10 more Easter eggs than Emma in their first round of egg hunt. However, Emma gathered twice as many eggs as Tank in their second round of egg hunt, while Tank's total number of eggs in the second round was 20 less than the number she had gathered in the first round. If the total number of eggs in the pile they were collecting with 6 other people was 400 eggs, and Emma gathered 60 eggs in the second egg hunt round, find the number of eggs that the 6 other egg hunters collected?
Answer: Tank's total number of eggs in the second round was 60 / 2 = 30 since Emma gathered twice as many eggs as Tank in their second round of egg hunt. The total number of eggs that Emma and Tank gathered in the second round was 60 + 30 = 90. Tank's total number of eggs in the second round was 20 less than the number she had gathered in the first round, meaning she had gathered 30 + 20 = 50 eggs in the first round of egg hunt. Tank gathered 10 more Easter eggs than Emma in their first round of egg hunt, meaning Emma collected 50 - 10 = 40 eggs. The total number of eggs Emma and Tank collected in the first round was 40 + 50 = 90. In the two rounds, Emma and Tank gathered 90 + 90 = 180 eggs. If the total number of eggs in the pile they were collecting with 6 other people was 400 eggs, the six other people gathered 400 - 180 = 220 eggs. The answer is 220.
[Question]Frank is walking through a corn maze. He has already spent 45 minutes inside. He has done 4 other corn mazes and finished those in 50 minutes on average. How much longer can he spend inside if he wants to ensure that his average doesn't go above 60 minutes per maze?
[Answer]He needs to keep his total time at 300 or below because 5 x 60 = 300. His total time spent in the other mazes is 200 because 4 x 50 = 200. His total time spent in the five mazes thus far is 245 because 200 + 45 = 245. He can spend 55 more minutes on this maze before his average go above 60 because 300 - 245 = 55. The answer is 55.
[Question]John has a very inefficient toilet that uses 5 gallons of water per flush and his household flushed 15 times per day. He replaced it with a toilet that uses 80% less water per flush. How much water did John save in June?
[Answer]
He used to use 5 * 15 = 75 gallons of water per day. This means he used 75 * 30 = 2250 gallons a month. His new toilet uses 5 * .8 = 4 gallons less water per flush. So, it only uses 5 - 4 = 1 gallon per flush. That means he uses 1 * 15 = 15 gallons per day. All in all, it accounts for a total usage of 15 * 30 = 450 gallons. So, he saved 2250 - 450 = 1800 gallons per month. The answer is 1800.