[Question]Andy walks 50 meters from his house to school. After school, he comes back to the house and goes to the market. If he walks 140 meters in total, how many meters is the distance between the house and the market?
[Answer]He walks 50m from home to school and walks 50m again from school to house, so he walks 50m + 50m = 100 meters. If the total distance is 140m, the distance between the house and the market is 140m - 100m = 40 meters. The answer is 40.
Q: The population of Delaware is 974,000. A study showed that there are 673 cell phones per 1000 people in the state. How many cell phones are there in Delaware?
A: There are 974000 / 1000 = 974 groups of 1000 people in the state. These groups will have 974 * 673 = 655502 cell phones. The answer is 655502.
Question: Sam went for a run in the morning. In the afternoon, he went grocery shopping and walked twice the distance through the store as he had run that morning. That evening, he went on a bike ride with his family and biked for 12 miles. In all, he went 18 miles that day. How many miles was Sam's morning run?
Answer: Let X be the distance Sam ran. His walk through the store was twice the distance of his run, so his walk was 2X. He biked for 12 miles and went 18 miles in all, so he walked and ran 18 - 12 = 6 miles. Thus, his walk and run together were X + 2X = 3X = 6 miles. Thus, he ran X = 6 / 3 = 2 miles. The answer is 2.
[Question]Julia had to make 6 cakes for the party. Each cake takes 12 minutes to mix and needs 9 more minutes to bake than mix. Then it takes 6 more minutes to cool and decorate than to bake. How many hours will it take to make all 6 cakes?
[Answer]It takes 12 + 9 = 21 minutes to bake each cake. It takes 21 + 6 = 27 minutes to cool and decorate each cake. Therefore, it takes a total of 12 + 21 + 27 = 60 minutes to make one cake. Thus, it takes 60 / 60 = 1 hour to bake one cake. So, it will take 1 x 6 = 6 hours to bake all 6 cakes. The answer is 6.
Q: James listens to super-fast music. It is 200 beats per minute. He listens to 2 hours of music a day. How many beats does he hear per week?
A: He listens to 2 * 60 = 120 minutes of music a day. So he hears 200 * 120 = 24000 beats per day. That means he hears 24,000 * 7 = 168,000 beats per week. The answer is 168000.
Question: Mr. Johnson is organizing the school Christmas play and needs 50 volunteers to help with decorating the auditorium. 5 students from each of the school's 6 math classes have volunteered to help. 13 teachers have also volunteered to help. How many more volunteers will Mr. Johnson need?
Answer:
Since 5 students from each of the 6 math classes have volunteered, there are 5 * 6 = 30 total student volunteers. In addition to the 30 student volunteers, 13 teachers have also volunteered so there are 30 + 13 = 43 total volunteers. Mr. Johnson needs 50 volunteers and currently has 43 volunteers, so he needs 50 - 43 = 7 more volunteers. The answer is 7.