Answer this question:Bo is learning words for the GRE. He got 800 flashcards. He knew 20% of the words on them. He has 40 days to learn the rest. How many words does he need to learn a day?
He knows 800 * .2 = 160 words. So he needs to learn 800 - 160 = 640 words. That means he needs to learn 640 / 40 = 16 words per day.
The answer is 16.

Answer this question:While on vacation in Hawaii, Steve and Georgia decided to ship pineapples to their home. Each pineapple costs $1.25 and they buy a dozen. It will cost $21.00 to ship all of them to their home. How much will each pineapple end up costing them?
They bought 12 pineapples for $1.25 apiece so 12 * 1.25 = $15.00. The pineapples cost $15.00 and it will cost $21.00 to ship so all total, it costs 15 + 21 = $36.00. In total it costs $36.00 to ship home a dozen pineapples so each pineapple costs 36 / 12 = $3.00 apiece.
The answer is 3.

Answer this question:The hobby store normally sells 21,122 trading cards per month. In June, the hobby store sold 3,922 more trading cards than normal. If the hobby store sold the regular number of trading cards in July, how many trading cards did the hobby store sell in June and July combined?
In June the hobby store sold 21,122 + 3,922 = 25,044 trading cards. Over June and July the store sold 25,044 + 21,122 = 46,166 trading cards.
The answer is 46166.

Answer this question:In 5 years, Raven will be 4 times as old as Phoebe. If Phoebe is currently 10 years old, how old is Raven?
In five years, Phoebe will be 10 + 5 = 15 years old. If Raven is four times as old as Phoebe in fifteen years, he will be 4 * 15 = 60 years old in 5 years. Currently, Raven is 60 - 5 = 55 years old.
The answer is 55.