[Question]Elsa and her sister watch an opera show every year at Central City Opera. Last year, opera seating cost $85 per ticket. This year, it costs $102. What is the percent increase in the cost of each ticket?
[Answer]The ticket price increase is $102 - $85 = $17. So there is 17 / 85 x 100% = 20% increase of price. The answer is 20.
Q: Ken caught twice as many fish as Kendra, but Ken released 3 fish back into the lake. Kendra caught 30 fish and did not release any of them back into the lake. How many fish did Ken and Kendra bring home?
A: Ken caught 30 * 2 = 60 fish. Ken brought home 60 - 3 = 57 fish. Ken and Kendra brought home 57 + 30 = 87 fish. The answer is 87.
Question: Yella's computer usage last week was 91 hours. If she plans to use the computer 8 hours a day for this week, how much less ​is her computer usage for this week?
Answer: Yella can use the computer 8 x 7 = 56 hours for this week. Therefore, Yella's computer usage for this week is 91 - 56 = 35 hours lesser than her computer usage last week. The answer is 35.
[Question]Dylan filled his glass with ice cubes before he poured his soda into it. He counted and there were 8 ice cubes in his glass. Later when he prepares a pitcher of lemonade he puts two times as many ice cubes in the pitcher. Then it is time to refill the ice cube trays which have 12 spaces each for ice cubes. How many trays does Dylan need to fill if he used exactly all the ice they had in them?
[Answer]Dylan uses 8 ice cubes in his glass plus 2 x as many for the pitcher of lemonade, 8 x 2 = 16 ice cubes. Those 16 ice cubes + the 8 before means that the ice cube trays originally held 16 + 8 ice cubes = 24 ice cubes. Each ice cube tray holds 12 ice cubes, 24 ice cubes / 12 spaces in the trays = 2 total ice cube trays. The answer is 2.
Q: Sally teaches elementary school and is given $320 to spend on books for her students. A reading book costs $12 and there are 30 students in her class. Unfortunately, if the money she is given by the school to pay for books is not sufficient, she will need to pay the rest out of pocket. How much money does Sally need to pay out of pocket, to buy every student a reading book?
A: To purchase a book for each student, Sally needs: 30 x $12 = $360. She thus needs to pay $360 - $320 = $40 out of pocket. The answer is 40.
Question: Archie needs to lay sod in his backyard that measures 20 yards by 13 yards. He has a shed on it that measures 3 yards by 5 yards. How many square yards of sod will Archie need for his backyard?
Answer:
20 * 13 = 260 square yards. 3 * 5 = 15 square yards. 260 - 15 = 245 square yards. Archie needs 245 square yards of sod. The answer is 245.