[Question]A train leaves its departure station with 6 coal cars, 12 iron cars, and 2 wood cars. Between each station, there are 6 miles, and it takes 25 minutes to travel between them. At each station, the train can deposit up to 2 coal cars, 3 iron cars, and 1 wood car. How many minutes will it take to deliver all the cars?
[Answer]To deliver all the coal, you need to pass by 6 coal / 2 coal / station = 3 stations. To deliver all the iron, you need to pass by 12 iron / 3 iron / station = 4 stations. To deliver all the wood, you need to pass by 2 wood / 1 wood / station = 2 stations. So 4 stations are needed to deliver everything, so 4 stations * 25 minutes / station = 100 minutes are needed. The answer is 100.
Q: My age is five times that of my son. Next year, my son will be eight years old. How old am I now?
A: If the son is going to be eight years old after a year from now, then currently, he is 8 - 1 = 7. Since the father's age is five times that of the son, currently he is 5 * 7 = 35 years old. The answer is 35.
Question: It takes 20 minutes for John to go to the bathroom 8 times. How long would it take to go 6 times?
Answer: He spends 20 / 8 = 2.5 minutes each time he goes in. So it would take 2.5 * 6 = 15 minutes to go 6 times. The answer is 15.
[Question]James decides to go to prom with Susan. He pays for everything. The tickets cost $100 each. Dinner is $120. He leaves a 30% tip. He also charters a limo for 6 hours that cost $80 per hour. How much did it all cost?
[Answer]He paid 100 * 2 = $200 for tickets. The tip for dinner was $120 * .3 = $36. So he paid $120 + $36 = $156 for dinner. The limo cost $80 * 6 = $480. In total he paid $200 + $156 + $480 = $836. The answer is 836.
Q: Jessica was half her mother's age when her mother died. If her mother were alive now, ten years later, she would have been 70. How old is Jessica currently?
A: If Jessica's mother would be alive today, ten years later after her death, she would be 70, meaning she died at 70 - 10 = 60. If Jessica was half her mother's age when her mother died, she was 1 / 2 * 60 = 30 years old. Currently, ten years later, Jessica is 10 + 30 = 40 years old. The answer is 40.
Question: At his craftwork store, Howard has a collection of 70 wooden bowls where he rewards two to his customers for every 10 they buy. If he had 20 customers that day, half of whom bought 20 bowls each, calculate the number of bowls remaining in the rewards collection.
Answer:
Half of the 20 customers, which is 1 / 2 * 20 = 10 bought 20 bowls each, receiving 2 for every 10. The total number of reward bowls each customer who bought 20 bowls received is 2 + 2 = 4. If 10 customers bought 20 bowls, Howard gave away 4 * 10 = 40 bowls as rewards. The total number of reward bowls that remained is 70 - 40 = 30. The answer is 30.