Q: John buys 500 newspapers. Each newspaper sells for $2. He sells 80% of them. He buys them all for 75% less than the price at which he sells them. How much profit does he make?
A: He sells 500 * .8 = 400 newspapers. He sells them for 400 * 2 = $800. He gets a discount of 2 * .75 = $1.5 on the newspapers. So he buys them for 2 - 1.5 = $.5. So he spent 500 * .5 = $250 buying them. That means he made a profit of 800 - 250 = $550. The answer is 550.
Question: To get admission into a school party, each football team member must pay $40. If there are 60 players on the football team and the entire team attends 8 such parties in a year, calculate the total amount of money collected in the 8 parties.
Answer: In one party, the total amount of money collected from the football players is $40 * 60 = $2400. If eight such parties are done in a year, the total amount of money collected from the parties is $2400 * 8 = $19200. The answer is 19200.
[Question]Rudy runs 5 miles at a rate of 10 minutes per mile. Later he runs 4 miles at a rate of 9.5 minutes per mile. What is the total length of time that Rudy runs?
[Answer]Rudy first runs for 5 * 10 = 50 minutes. Then Rudy runs for 4 * 9.5 = 38 minutes. Rudy runs for a total length of 50 + 38 = 88 minutes. The answer is 88.
Q: Bob buys nose spray. He buys 10 of them for a "buy one get one free" promotion. They each cost $3. How much does he pay?
A: He got 10 / 2 = 5 paid. That means he paid 5 * 3 = $15. The answer is 15.
Question: Working together, four pugs can clean their house in 45 minutes. In how many minutes will 15 pugs working together be able to clean their house?
Answer: If four pugs can clean their house in 45 minutes, one pug will take 4 * 45 = 180 minutes. Since one pug working alone takes 180 minutes to clean the house, fifteen pugs working together will be able to clean their house in 180 / 15 = 12 minutes. The answer is 12.
Q: Pete has to take a 10-minute walk down to the train station and then board a 1hr 20-minute train to LA. When should he leave if he cannot get to LA later than 0900 hours? (24-hr time)
A:
There are 60 minutes in an hour so 1 hour 20 minutes = (60 + 20) minutes = 80 minutes. He will spend a total of 80 + 10 = 90 minutes. 90 minutes is = (60 / 60) hours and 30 minutes = 1 hour 30 minutes = 0130 in 24 - hr time. He has to leave 0130 hours earlier than 0900 i.e. 0900 - 0130 = 0730 hours. The answer is 730.