A person borrowed an amount of money for a year at an interest rate of 12%. If the total interest is $1500, what was the original borrowed amount?
Let's think: Let X be the price of the borrowed amount. The interest is X * .12 = $1500. So the borrowed amount is X = $1500 / .12 = $12500.. The answer is: 12500.

Nick hides 10 chocolates in his closet. His brother Alix hides 3 times as many chocolates than Nick hides. Last night, their mom found and took 5 chocolates from Alix. How many more chocolates does Alix have than Nick?
Let's think: Alix has 3 * 10 = 30 chocolates. After his mom took 5 chocolates, Alix has now 30 - 5 = 25 chocolate. So Alix has 25 - 10 = 15 chocolates more than Nick.. The answer is: 15.

Carl has been selling watermelons on the side of the road for $3 each. This evening he went home with $105 in profit and 18 watermelons. How many watermelons did he start out with this morning?
Let's think: Carl sells his watermelons for $3 each so today he sold $105 / $3 per watermelon = 35 watermelons. He had 18 watermelons left over, so this morning he started with 18 + 35 = 53 watermelons.. The answer is: 53.

Josh wants to build a square sandbox that is 3 ft long, 3 ft wide for his son. He can buy sand in 3 sq ft bags for $4.00 a bag. How much will it cost him to fill up the sandbox?
Let's think:
The sandbox is 3' long, 3' wide so the sq footage of the sandbox is 3 * 3 = 9 sq ft. He needs 9 sq ft of sand to fill the sandbox and he can buy it in 3 sq ft bags so he needs 9 / 3 = 3 bags of sand. The sand costs $4.00 a bag and he needs 3 bags so it will cost him 4 * 3 = $12.00 in sand.. The answer is: 12.