Question: Kiaan is doing home delivery of newspapers in his neighborhood of 200 homes. After an hour of work, he has distributed newspapers to 2/5 of the homes. After another 2 hours of working, he realizes he has distributed newspapers to 60 percent of the remaining homes. How many homes does he still need to distribute the newspapers to?
Answer: Step-by-step reasoning process: After the first hour of work, he has distributed newspapers to 2 / 5 * 200 = 80 homes. The number of homes that still need newspapers is 200 - 80 = 120. Two hours later, the number of homes he has distributed newspapers to is 60 / 100 * 120 = 72 homes. The number of homes he still needs to distribute newspapers to is 120 - 72 = 48 homes.
So the answer is 48.

Question: There are 4 carriages in a train and each carriage has 25 seats. If each carriage could accommodate 10 more passengers, how many passengers would fill up 3 trains?
Answer: Step-by-step reasoning process: If each carriage had another 10 seats, each carriage would have 25 + 10 = 35 seats. The train comprises of 4 carriages and each carriage now has 35 seats; therefore a train has 35 x 4 = 140 seats. 3 trains with 140 seats each in total can take up 3 x 140 = 420 passengers.
So the answer is 420.

Question: A band's members each earn $20 per gig. If there are 4 members and they've earned $400, how many gigs have they played?
Answer: Step-by-step reasoning process: The band earns $80 per gig because 4 x 20 = 80. They played 5 gigs because 400 / 80 = 5.
So the answer is 5.

Question: Lisa has 18 more dresses than Ana. If the number of their dresses combined is 48, how many dresses does Ana have?
Answer:
Step-by-step reasoning process: If Lisa's surplus of 18 dresses is taken away from the total, they will have 48 - 18 = 30 dresses in total. They would each have the same number of dresses from these 30 i.e. 30 / 2 = 15 dresses which is the number of dresses that Ana actually has.
So the answer is 15.