We have a question: Theon's ship can move 15 nautical miles per hour while Yara's ship can move 30 nautical miles per hour. If their destination is 90 nautical miles away, how many hours ahead will Yara be ahead of Theon?
And an answer: 3
So how you got the answer?
Theon's estimated time of arrival is 90 / 15 = 6 hours. Yara's estimated time of arrival is 90 / 30 = 3 hours. Therefore, Yara is ahead by 6 - 3 = 3 hours.

We have a question: Malik rushed for 18 yards in each of 4 games. Josiah ran for 22 yards in each of 4 games. Darnell had an average of 11 yards rushed for each of the 4 games. How many yards did the 3 athletes run in total?
And an answer: 204
So how you got the answer?
Malik = 18 * 4 = 72 yards. Josiah = 22 * 4 = 88. Darnell = 11 * 4 = 44 yards. Total yards = 72 + 88 + 44 = 204 yards. The 3 athletes ran 204 yards.

We have a question: Selene buys two instant cameras at $110 and three digital photo frames at $120 each. She gets a 5% discount on all the items she purchased. How much does she pay in all?
And an answer: 551
So how you got the answer?
Two instant camera cost 2 x $110 = $220. Three digital photo frames cost 3 x $120 = $360. Thus, the total amount is $220 + $360 = $580. So, Selena gets a discount of 5 / 100 x 580 = $29. Therefore, Selena pays a total of $580 - $29 = $551.