[Question]Duke was at a garage sale when he spotted DVDs on sale. They were separated by price into 2 different boxes. In the first box, he found 10 movies that he wanted. These were $2.00 apiece. The second box was marked $5 each and he found 5 movies he wanted. What was the average price of each of the DVDs he bought?
[Answer]In the first box he bought 10 DVDs at $2.00 each, so he paid 10 * 2 = $20.00. In the second box he bought 5 DVDs at $5.00 each, so he paid 5 * 5 = $25.00. He bought 10 + 5 = 15 DVDs. He spent $20 + $25 = $45.00. The average price of each DVD is $45 / 15 = $3.00 each. The answer is 3.

[Question]John plays a game for 4 hours a day every day for 2 weeks. After all that time, he is only 40% done. He increased his playtime to 7 hours a day. How long until he finishes the game?
[Answer]There are 7 * 2 = 14 days in two weeks. So he played 14 * 4 = 56 hours. That means the total length of the game is 56 / .4 = 140 hours. So he has 140 - 56 = 84 hours to beat the game. So it will take him 84 / 7 = 12 days to beat the game. The answer is 12.

[Question]The government donated tons of sand to four Cities. City A received 16 1/2 tons of sand, City B received 26 tons of sand, and City C received 24 1/2 tons of sand. The supplier lost the data for City D; however, they know the total for all four cities was 95 tons. How many tons of sand did City D receive?
[Answer]The total tons of sand donated to City A and City C is 16 1 / 2 + 24 1 / 2 = 41. The total tons of sand donated to City A, City B, and City C is 41 + 26 = 67. Therefore, City D received 95 - 67 = 28 tons of sand. The answer is 28.

[Question]Sean and Sierra invited 200 guests to their wedding. If 83% of the guests RSVP with a Yes response and 9% of the guests RSVP with a No response, how many guests did not respond at all?
[Answer]
Yes RSVP responses are 200 x 83% = 166 guests. No RSVP responses are 200 x 9% = 18 guests. Guests who responded are 166 + 18 = 184. Guests who did not respond at all are 200 - 184 = 16. The answer is 16.