Mr. Bodhi is transporting some animals using a yacht across a river. He has 20 cows, 15 foxes and three times as many zebras as foxes. To balance the yacht to ensure a smooth sail across the river, the total number of animals in the yacht needs to be 100. If he decides to add sheep to the yacht to make the yacht sail-worthy, how many sheep did he add to the yacht?
Let's think: The number of cows and foxes in the yacht is 20 + 15 = 35. Mr. Bodhi also has three times as many zebras as foxes in the yacht, equal to 3 * 15 = 45 zebras. The number of animals in the yacht so far is 35 + 45 = 80. To balance the yacht, Mr. Bodhi needs to add 100 - 80 = 20 sheep.. The answer is: 20.

Avery has 20 chickens on his farm. Each chicken lays 6 eggs. He wants to fill up egg cartons with eggs. If each egg carton can hold a dozen (12 eggs), how many egg cartons can Avery fill?
Let's think: Avery has a total of 20 * 6 = 120 eggs. Avery can fill up 120 / 12 = 10 egg cartons.. The answer is: 10.

A storm dropped 5 inches of rain in the first thirty minutes. In the next 30 minutes, the hurricane dropped half that amount of rain. It then dropped 1/2 inch of rain for the next hour. What was the average rainfall total for the duration of the storm?
Let's think: The storm dropped 5 inches then half that amount so 5 / 2 = 2.5 inches. The next hour the storm dropped 1 / 2 inch of rain for 1 hour so 1 * .5 = .5 inches. All total the storm dropped 5 inches + 2.5 inches + .5 inch for = 8 inches. It rained for 2 hours total so 8 / 2 = 4 inches of rain per hour.. The answer is: 4.

A private company raised $2500 to be used for charity. They donated 80% to a public foundation with 8 organizations. How much money will each organization receive?
Let's think:
The public foundation will have $2500 x 80 / 100 = $2000. So, each of the organizations will receive $2000 / 8 = $250.. The answer is: 250.