[Question]: If it takes 8 days for 3 builders to build a cottage. How long will it take 6 builders to build the same size cottage working at the same rate?
[Answer]: It would take one builder 8 x 3 = 24 days to build the cottage on his own. 6 builders can build the house in 24 / 6 = 4 days.
So the answer is 4.

[Question]: The chances of making the junior high basketball team start at 10% if you're 66 inches and increase 10% for every additional inch of height. Devin starts out as 65 inches tall, then grows 3 inches. What are his chances of making the basketball team?
[Answer]: First find Devin's new height by adding his growth to the original height: 65 inches + 3 inches = 68 inches. Then subtract 66 inches from Devin's height to find how many extra inches of height he has: 68 inches - 66 inches = 2 inches. Then multiply the number of extra inches by the percentage increase per inch to find the total percentage increase in his chances: 2 inches * 10% / inch = 20%. Then add the percentage increase to the base percentage to find Devin's overall chance of making the basketball team: 10% + 20% = 30%.
So the answer is 30.

[Question]: James buys 3 shirts for $60. There is a 40% off sale. How much did he pay per shirt after the discount?
[Answer]:
He got a 60 * .4 = $24 discount. So he paid 60 - 24 = $36 for the shirts. That means he paid 36 / 3 = $12 per shirt.
So the answer is 12.