Question: The difference in the number of pens that Alice and Clara each have matches their age difference. Alice has 60 pens and Clara has 2/5 times as many pens as Alice. If Alice's age is 20 and Clara is older than Alice, calculate Clara's age in 5 years to come.
Answer: If Alice has 60 pens, Clara 2 / 5 * 60 = 24 pens. The number of pens that Alice has more than Clara is 60 - 24 = 36. Since Alice is 20, and the number of pens that Alice has more than Clara is their age difference, Clara is 20 + 36 = 56 years old. In five years, Clara's age will be 56 + 5 = 61 years. The answer is 61.
[Question]Ellie has 8 pairs of shoes. Riley has 3 fewer. How many pairs of shoes do they have in all?
[Answer]Riley has 3 fewer pairs of shoes than Ellie’s 8, so 8 – 3 = 5 pairs of shoes. Together, they have Ellie’s 8 + Riley’s 5 = 13 pairs of shoes. The answer is 13.
Q: There are three goldfish and ten platyfish in a fish tank. Each goldfish plays with ten red balls, while each platyfish plays with five white balls. What is the total number of balls in the fish tank?
A: If there are 3 goldfish, and each is playing with ten red balls, then the number of red balls in the tank is 3 * 10 = 30. There are also ten platyfish playing with 5 white balls, there are 10 * 5 = 50 white balls. The total number of red and white balls in the fish tank is 50 + 30 = 80. The answer is 80.
Question: An unusual bicycle has 20 spokes on the front wheel and twice as many spokes on the back wheel. How many spokes does the bicycle have?
Answer: The back wheel has double the spokes the front wheel has, which means the back wheel has 20 * 2 = 40 spokes. In total, the bicycle has 20 + 40 = 60 spokes. The answer is 60.
[Question]Julia has $40. She spends half of her money to buy a new game for her phone. She spends a quarter of what she has left on in-game purchases. How much money does she have left?
[Answer]Julia spend $40 / 2 = $20 on the game. After buying the game, she has $40 - $20 = $20 left. She spent $20 / 4 = $5 on in - game purchases. She has $20 - $5 = $15 left. The answer is 15.
[Question]Tracy has been collecting novels from her friends to donate to the Children For The Future charity organization. In the first week she collects a certain number of books. In the next five weeks, she collects ten times as many books as she did in the first week. How many books did she collect in the first week if she has 99 books now?
[Answer]
Let's say the number of books she had in the first week is x. After six weeks, Tracy has x + x * 10 = 99 books. Combining like terms, we get 11x = 99. Dividing both sides by 11, we find that the number of books Tracy had in the first week is x = 9. The answer is 9.