Question: Derek has $960 to buy his books for the semester. He spends half of that on his textbooks, and he spends a quarter of what is left on his school supplies. What is the amount of money Derek has left?
Answer: Amount spent on textbooks is 960 / 2 = 480 dollars. Amount spent on school supplies is 480 / 4 = 120 dollars. Amount Derek has left 960 - 480 - 120 = 360 dollars. The answer is 360.
[Question]In the city park, there are various attractions for kids and their parents. The entrance ticket to the park is $5, but for each attraction, you have to pay separately - such ticket costs $2 for kids and $4 for parents. How much would a family with 4 children, their parents, and her grandmother pay for visiting the park, and one attraction inside?
[Answer]The whole family consists of 4 + 2 + 1 = 7 persons. The entrance ticket to the park costs the same for every person, so the family would need to pay 7 * 5 = $35 to enter. For visiting the attraction the tickets would cost 4 * 2 = $8 for the kids. Their parents and grandmother would need to pay 3 * 4 = $12. That means a total cost for the family standing at 35 + 8 + 12 = $55. The answer is 55.
Q: Elvis is releasing a new album with 10 songs, but he doesn't want to waste too much time on writing. He spends 5 hours in the studio, where he writes, records, and edits his songs. Each song takes 12 minutes to record, then it takes 30 minutes to edit all of his songs.  How many minutes did it take Elvis to write each song, if each song took the same amount of time to write?
A: 5 hours in the studio is the same as 5 * 60 = 300 minutes. To record all of his songs, Elvis takes 12 * 10 = 120 minutes. After editing and recording 300 – 120 – 30 = 150 minutes are left to write all of his songs. Songwriting therefore took 150 / 10 = 15 minutes per song. The answer is 15.
Question: A family is going to the amusement park. The adult tickets cost $22 for admission, and the tickets for children cost $7. The family consists of 2 adults and 2 children. What is the total price the family will pay for admission?
Answer: To solve this problem you can set up an equation to represent the total price the family will pay, with a representing the number of adult tickets, c representing the number of children’s tickets, and p representing the total price of admission. Thus 22a + 7c = p. Plug in the number of adults and children that plan to go to the amusement park: 22(2) + 7(2) = $58 is the total cost for admission. The answer is 58.
[Question]Sarah buys 20 pencils on Monday. Then she buys 18 more pencils on Tuesday. On Wednesday she buys triple the number of pencils she did on Tuesday. How many pencils does she have?
[Answer]By adding together Monday and Tuesday, Saah has 20 + 18 = 38 pencils. On Wednesday, she buys 3 * 18 = 54 pencils. All together, Sarah has 38 + 54 = 92 pencils. The answer is 92.
[Question]Elijah is painting his living room and decides to buy masking tape to make his painting neater. 2 of his walls are 4 meters wide and the other 2 walls are 6 meters wide. Elijah needs enough masking tape to cover the entire width of each wall and can order the exact amount of masking tape he needs. How many meters of masking tape does Elijah need to order?
[Answer]
For 2 of the walls, Elijah will need 2 walls * 6 meters each = 12 meters of masking tape. For the other 2 walls, he will need 2 walls * 4 meters each = 8 meters of masking tape. He will therefore need a total of 12 + 8 = 20 meters of masking tape. The answer is 20.