Question: Pirate Rick sailed his ship to a tropical island in search of a site to bury his treasure. After finding the perfect site, it took him 4 hours to dig up 8 feet of sand under which to bury the treasure. Once the treasure was buried, he left the island. Then, a tropical storm came and washed away half of the sand from on top of the treasure. Next, a giant tsunami wave poured over the island, adding 2 feet of new sand back onto the site of his treasure. When Pirate Rick returned, how long did it take for him to dig up his treasure?
Answer: Pirate Rick digs at a rate of 8 feet of sand per 4 hours, or 8 / 4 = 2 feet per hour. Of the 8 feet of sand that were initially on top of the treasure, the storm washed 8 / 2 = 4 feet of sand away. Thus, after the storm and the tsunami, the treasure was buried beneath 8 - 4 + 2 = 6 feet of sand. Digging at a rate of 2 feet per hour, Pirate Rick could uncover his treasure in 6 / 2 = 3 hours. The answer is 3.

Question: Rich ran a 24-mile marathon in 3 hours and 36 minutes. On average, how long, in minutes, did it take Rich to run a mile during the race?
Answer: 3 hours is 3 * 60 = 180 minutes. Thus 3 hours and 36 minutes is 180 + 36 = 216 minutes. Thus, he ran the 24 miles in 216 minutes, and each mile took 216 / 24 = 9 minutes for Rich to run. The answer is 9.

Question: John raises emu. He has 4 pens for emu and each pen has 6 emus in it. Each female emu lays 1 egg per day. If half the emu are females how many eggs does he get a week?
Answer: There are 6 * 4 = 24 emus. So there are 24 / 2 = 12 female emus. So he gets 12 * 7 = 84 eggs a week. The answer is 84.

Question: Tom needs to buy a new gaming system. He trades in his super Nintendo for an original NES. The SNES is worth $150 and the store gives him 80% of that value. He gives $80 and gets back $10 change and a game worth $30. How much was the NES on sale for?
Answer:
He traded in the SNES for 150 * .8 = $120. Including the money he gave, he spent 120 + 80 = $200. He got 10 + 30 = $40 in change. So the NES cost 200 - 40 = $160. The answer is 160.