Cynthia has four times as many water balloons as her husband, Randy. Randy has only half as many water balloons as his daughter, Janice. If Janice throws all 6 of her water balloons at her father, how many water balloons does Cynthia have, which she could also choose to throw at Randy?
Let's think: Randy has only half as many water balloons as Janice’s 6, for a total of (½) * 6 = 3 water balloons. Cynthia has 4 times as many water balloons as Randy, for a total of 4 * 3 = 12 water balloons.. The answer is: 12.

A group of researchers are studying a colony of penguins. Their results show that the size doubled in the first year they watched the colony, then tripled in the next year. This year, however, harsh conditions meant the colony only gained 129 penguins. The colony has 1077 penguins in it now. Each penguin eats one and a half fish every day. How many fish did the whole colony catch per day to eat at the beginning of the first year?
Let's think: The colony had 1077 - 129 = 948 penguins in it at the beginning of this year. At the beginning of the second year, the colony had 948 / 3 = 316 penguins in it. At the beginning of the first year, it had 316 / 2 = 158 penguins in it. Thus, at the beginning of the first year, the penguin colony was catching 158 * 1 1 / 2 = 237 fish per day.. The answer is: 237.

Amon & Rhonda combined have 215 marbles. If Amon owns 55 marbles more than Rhonda, how many marbles does Rhonda have?
Let's think: Let's say Rhonda has m marbles. The total number of marbles that Ammon has is m + 55. Amon & Rhonda combined have m + (m + 55) = 215. This means the total number of marbles they have together is 2m + 55 = 215. 2m = 215 - 55. The total number of marbles that Rhonda has is m = 160 / 2. Rhonda has m = 80 marbles.. The answer is: 80.

There are six more white birds next to a cage than grey birds in the cage. If the number of grey birds in the cage is 40, and after ten minutes, half of the birds in the cage are freed and fly away, calculate the total number of birds remaining.
Let's think:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
If the number of grey birds is 40, there are 40 + 6 = 46 white birds near the cage. When half of the grey birds fly away, the number that remains is 1 / 2 * 40 = 20. The total number of birds is 20 + 46 = 66 in and next to the cage.. The answer is: 66.