Q: Kate wants to buy a special pen as a gift for her friend. The pen costs $30, and Kate only has money for a third of that amount. How much more money does she need to buy the pen?
A: Currently, Kate has only 1 / 3 * 30 = $10. That means Kate needs 30 - 10 = $20 more to buy the pen. The answer is 20.
Question: Joel is 5 years old and his dad is 32 years old. How old will Joel be when his dad is twice as old as him?
Answer: The difference in age between Joel and his dad is 32 - 5 = 27 years. When you double this gap in years, you have 27 x 2 = 54. When his dad is 54, Joel will be 54 / 2 = 27 years old. The answer is 27.
[Question]Two days ago, the temperature in the morning went up 1.5 degrees every 2 hours. If the temperature was 50 degrees at 3 A.M., what was the temperature at 11 A.M.?
[Answer]At 5 A.M., the temperature was 50 degrees + 1.5 degrees = 51.5 degrees. At 7 A.M., the temperature was 51.5 degrees + 1.5 degrees = 53 degrees. At 9 A.M., the temperature was 53 degrees + 1.5 degrees = 54.5 degrees. At 11 A.M., the temperature was 54.5 degrees + 1.5 degrees = 56 degrees. The answer is 56.
Q: Four people in a law firm are planning a party. Mary will buy a platter of pasta for $20 and a loaf of bread for $2. Elle and Andrea will split the cost for buying 4 cans of soda which cost $1.50 each, and chicken wings for $10. Joe will buy a cake that costs $5. How much more will Mary spend than the rest of the firm put together?
A: Mary will spend $20 + $2 = $22. Elle and Andrea will spend $1.5 x 4 = $6 for the soda. Elle and Andrea will spend $6 + $10 = $16 for the soda and chicken wings. Elle, Andrea, and Joe together will spend $16 + $5 = $21. So, Mary will spend $22 - $21 = $1 more than all of them combined. The answer is 1.
Question: Jane runs 3 kilometers in two hours. What is her speed in meters per minute?
Answer: Since 1 kilometer is equal to 1000 meters, then 3 kilometers is 3 x 1000 = 3000 meters. Since an hour has 60 minutes, then 2 hours is equal to 2 x 60 = 120 minutes. Therefore, her speed is 3000 meters / 120 hours = 25 meters per minute. The answer is 25.
Q: Anya has 4 times as many erasers as Andrea. If Andrea has 4 erasers, how many more erasers does Anya have than Andrea?
A:
Anya has 4 x 4 = 16 erasers. Thus, Anya has 16 - 4 = 12 more erasers than Andrea. The answer is 12.