Q: For homework, Juan's teacher asked everyone in the class, to write down the different types of transportation (cars, trucks, bicycles, skateboards etc) they saw on their way home that afternoon. After school, Juan walked home and saw the following: 15 cars, 3 bicycles, 8 pickup trucks and 1 tricycle. How many tires in total were there on the vehicles Juan saw?
A: He saw 15 cars and 8 trucks so 15 + 8 = 23 vehicles. Those 23 vehicles have 4 wheels each so 23 * 4 = 92 wheels. Bicycles have 2 wheels each and he saw 3 bikes so 2 * 3 = 6 wheels. Tricycles have 3 wheels each and he saw 1 tricycle so 1 * 3 = 3 wheels. In total, Juan saw 92 + 6 + 3 = 101 wheels. The answer is 101.
Question: We harvested 405 kg of apples. 90 kg were used to make fruit juice and 60 kg were given to a restaurant. The rest was sold in 5 kg bags and their sale brought in $408. What was the selling price of one bag of apples?
Answer: The weight of apples used for juice and given to the restaurant is 60 + 90 = 150 kg. Thus 405 – 150 = 255kg worth of apples were sold in 5 kg bags. There were 255 / 5 = 51 bags sold. So each bag was sold for 408 / 51 = $8. The answer is 8.
[Question]Paul and his sister Paula went to the cookie store to buy some cookies. Paula bought 3 fewer cookies than Paul, who bought 45 cookies. How many cookies do they have altogether?
[Answer]Paula bought 45 cookies - 3 cookies = 42 cookies. In total, they have 42 cookies + 45 cookies = 87 cookies. The answer is 87.
Q: It takes 10 minutes to wash a car, 15 minutes to change oil, and 30 minutes to change a set of tires. If mike washes 9 cars, changes the oil on 6 cars, and changes two sets of tires how many hours did he work?
A: He spent 10 minutes * 9 cars = 90 minutes washing cars. He spent another 15 minutes * 6 cars = 90 minutes changing oil. He spent 2 cars * 30 minutes = 60 minutes changing tires. He spent 90 minutes + 90 minutes + 60 minutes = 240 minutes working. He spent 240 minutes / 60 minutes = 4 hours working. The answer is 4.
Question: Jimmy needs to score at least 50 points to pass to the next class. He earned 20 points for each of the 3 exams he wrote but lost 5 points during the school year for bad behavior. How many more points can Jimmy lose and still be able to pass the next class?
Answer: Jimmy earned 20 * 3 = 60 points for the exams he wrote. For bad behavior, he lost 5 points, so he has 60 – 5 = 55 points left. To pass to the next class, Jimmy needs at least 50 points, so he can lose 55 – 50 = 5 more points. The answer is 5.
Q: Stuart is going on a cross-country trip and wants to find the fastest route. On one route the total distance is 1500 miles and the average speed is 75 MPH. On the second trip, the total distance is 750 but the average speed is 25 MPH. How long does his trip take if he goes on the fastest route?
A:
The first route will take 20 hours because 1,500 / 75 = 20. The second route will take 30 hours because 750 / 25 = 30. The fastest route takes 20 hours because 20 < 30. The answer is 20.