Question: To keep himself busy in class, Michael makes rubber-band balls. He makes two sizes, large and small. A small ball uses 50 rubber bands. A large ball requires 300 rubber bands. Michael brought a 5,000 pack to class and already made 22 small balls. How many large balls can he make with the remaining rubber bands?
Answer: Michael has used 1,100 rubber bands because 22 x 50 = 1,100. Michael has 3,900 rubber bands remaining because 5,000 - 1,100 = 3,900. Michael can make 13 large balls because 3,900 / 300 = 13. The answer is 13.

Question: Tom takes medication to help him sleep. He takes 2 pills every day before bed. He needs to go to the doctor every 6 months to get a new prescription and a visit to the doctor costs $400. The medication costs $5 per pill, but insurance covers 80% of that cost. How much does he pay a year for everything?
Answer: He sees the doctor 12 / 6 = 2 times a year. So he pays 400 * 2 = $800 for doctor visits. The cost of the pill is 5 * 2 = $10 per night. But insurance covers 10 * .8 = $8. So he pays 10 - 8 = $2 per night. So he pays 2 * 365 = $730 a year. SSo his total cost is 800 + 730 = $1530 a year. The answer is 1530.

Question: A Printing shop needs to ship 5000 brochures to an advertising company. Each box can only contain one-fifth of the brochures. How many boxes are needed to ship those brochures?
Answer: 5000 x 1 / 5 = 1000 brochures can fit in one box. Thus, 5000 / 1000 = 5 boxes are needed. The answer is 5.

Question: There are 92 students altogether. Twenty of them ride the school bus home together, 5/8 of the remaining ride their own bike home, and the rest whose houses are near the school walk home. How many students are walking home?
Answer:
If there are 92 students and 20 students take the bus home, the number of students who haven't taken the bus is 92 - 20 = 72 students. 5 / 8 of the students who didn't take the bus home ride bikes home, a total of 5 / 8 * 72 = 45 students. The number of students who neither took the bus nor biked home but walked home is 72 - 45 = 27. The answer is 27.