[Question]John invests in a bank and gets 10% simple interest. He invests $1000. How much money does he have after 3 years?
[Answer]He gets 1000 * .1 = $100 a year. So after 3 years, he gets 100 * 3 = $300. So he has 300 + 1000 = $1300. The answer is 1300.
Q: In 2 years, Maxwell will be twice his sister's age. If his sister is now 2, how old is Maxwell now?
A: In two years, Maxwell's sister will be 2 years + 2 years = 4 years old. Therefore, Maxwell will be 4 years x 2 = 8 years old in two years. Maxwell is now 8 years - 2 years = 6 years old. The answer is 6.
Question: Greg and Sarah have 18 apples that they are going to split evenly. Susan has twice as many apples as Greg will end up with. Mark has 5 fewer apples than Susan. Their mom needs 40 apples to make an apple pie. How many will she have left over?
Answer: Greg and Sarah will split their apples, so 18 apples / 2 = 9 apples per child. Susan has 2 * 9 apples = 18 apples. Mark has 18 apples - 5 apples = 13 apples. Combined the children have 9 apples + 9 apples + 18 apples + 13 apples = 49 apples. Mom will have 49 apples - 40 apples = 9 apples left over. The answer is 9.
[Question]Alice made 52 friendship bracelets over spring break to sell at school. It only cost her $3.00 in materials to make these bracelets. During the break, she gave 8 of her bracelets away. Back at school, she sells all of the remaining bracelets at $0.25 each. How much profit did she make (money earned after paying initial costs) on the sale of her bracelets?
[Answer]She made 52 bracelets but gave 8 away so she had 50 - 8 = 44 bracelets left. She sold 44 bracelets at $0.25 each for a total of 44 * .25 = $11.00. She made $11.00 but she spent $3.00 on the supplies. So her profit would be 11 - 3 = $8.00. The answer is 8.
Q: The Period 1 gym class has 5 fewer than twice as many students as in the Period 2 gym class. There are 11 students in the Period 1 gym class. How many are in the Period 2 gym class?
A: Let x be the number of students in the Period 8 gym class. 2x - 5 = 11. 2x = 16. x = 8. The answer is 8.
Question: Terry spent 6$ for breakfast on Monday, twice as much on Tuesday, and on Wednesday Terry spent double what he did the previous two days combined. How much did Terry spend total?
Answer:
Monday: 6$. Tuesday:6(2) = 12$. Wednesday:2(6 + 12) = 36$. Total:6 + 12 + 36 = 54$. The answer is 54.