Q: 4 students participated in a 200m race. If the average completion time of the last three students was 35 seconds, and the average completion time of all four runners was 30 seconds, how long (in seconds) did it take the student who came first to finish the race?
A: The last 3 students had an average completion time of 35 seconds so the sum of their completion times was 3 * 35 = 105 seconds. All 4 students (now including the student who came first) had an average completion time of 30 seconds, meaning the sum of their completion times is 4 * 30 = 120 seconds. The student who came first spent 120 - 105 = 15 seconds in the race. The answer is 15.
Question: The community leader of a certain town organized a cleaning day event where community members were to be involved in collecting trash inside the town. Out of 2000 community members involved in the cleaning process, 30% were adult men. If there were twice as many adult women as adult men in the event, and the rest were children, calculate the total number of children involved in the cleaning event.
Answer: If the number of adult men involved in the cleaning process was 30% of the community members, there were 30 / 100 * 2000 = 600 adult men at the event. There were also twice as many adult women as adult men in the event, a total of 2 * 600 = 1200 women. The total number of adults in the event was 1200 + 600 = 1800. If the rest of the people at the cleaning event were children, there were 2000 - 1800 = 200 children at the event. The answer is 200.
[Question]A pickup truck can fill 20 eight gallon water cans (each can filled three quarters of its capacity) in three hours. If each can is filled to full capacity instead, how long, in hours, will it take to fill 25 cans?
[Answer]Each can is filled with 8 / 4 * 3 = 6 gallons of water. A total of 6 * 20 = 120 gallons of water is filled in 3 hours. In 1 hour, 120 / 3 = 40 gallons of water is filled. 25 full cans can hold 25 * 8 = 200 gallons of water. It will take 200 / 40 = 5 hours to fill 25 cans to full capacity. The answer is 5.
Q: The movie theater sold 18 more than three times the number of tickets to the horror movie as it did to the romance movie. If the theater sold 25 tickets to the romance movie, how many tickets did it sell to the horror movie?
A: Three times the number of tickets to the romance movie is 25 * 3 = 75 tickets. The horror movie sold 75 + 18 = 93 tickets. The answer is 93.
Question: A movie ticket for an adult costs $8, and a child's ticket costs $3. One adult is taking a group of children to the movies. She has $35. How many children can she take with her to the movies?
Answer: Let X be the number of children the adult can take with her. She has $35, so she could buy one ticket for her and the rest for the children. So she has $35 - $8 = $27 left for children. She could take $27 / $3 / child = 9 children with her. The answer is 9.
Q: Ray has 175 cents in nickels. Ray gives 30 cents to Peter, and he gives twice as many cents to Randi as he gave to Peter. How many more nickels does Randi have than Peter?
A:
Ray gave 30 * 2 = 60 cents to Randi. Randi has 60 / 5 = 12 nickels. Peter has 30 / 5 = 6 nickels. Randi has 12 - 6 = 6 more nickels than Peter. The answer is 6.