Answer the following question.
Laura is hosting a carwash. She will charge $5 for a car, $6 for a truck, and $7 for an SUV. They raised $100 in total. If they washed 5 SUVs and 5 trucks, how many cars did they wash?
Step-by-step reasoning process: They earned $30 from trucks because 5 x 6 = 30. They earned $35 from SUVs because 5 x 7 = 35. They earned $35 from cars because 100 - 35 - 30 = 35. They washed 7 cars because 35 / 5 = 7.
The answer is 7.

Answer the following question.
Rodney and Todd are rowing down a river that is 50 yards wide at one end. If the river's width increases from this end uniformly by 2 yards every 10 meters along, and they row along the river at a rate of 5 m/s, how long (in seconds) will it take them to get to the point where the river is 80 yards wide?
Step-by-step reasoning process: The difference in width between where they're starting from and their destination is 80 - 50 = 30 yards. The width increases 2 yards every 10 m along the river so they would have to cover (30 / 2) * 10 = 150 meters. Traveling at the rate of 5m / s, he will spend 150 / 5 = 30 seconds.
The answer is 30.

Answer the following question.
Ben's hockey team is 60% boys and the rest are girls. Half the girls are juniors and the other half are seniors. If the team has 50 players, how many junior girls are there?
Step-by-step reasoning process: The team is 40% girls because 100 - 60 = 40. The team has 20 girls because 50 x .4 = 20. The team has 10 junior girls because 20 / 2 = 10.
The answer is 10.

Answer the following question.
Miles is going to spend 1/6 of a day reading. He will read comic books, graphic novels, and novels. He reads 21 pages an hour when he reads novels, 30 pages an hour when he reads graphic novels, and 45 pages an hour when he reads comic books. If he reads each for 1/3 of his time, how many pages does he read?
Step-by-step reasoning process: Miles will read for 4 hours because 24 x (1 / 6) = 4. He will read each type for 1 and 1 / 3 hours because 4 / 3 = 1 and 1 / 3. He will read 28 pages of novels because 21 x (1 and 1 / 3) = 28. He will read 40 pages of graphic novels because 30 x (1 and 1 / 3) = 40. He will read 60 pages of comic books because 45 x (1 and 1 / 3) = 60. He will read 128 pages in total because 28 + 40 + 60 = 128.
The answer is 128.