Step-by-step reasoning process: Ali spent 480 / 2 = $240 on food. After buying the food, Ali had 480 - 240 = $240 left. He spent 240 / 3 = 80 dollars on a pair of glasses. He had 240 - 80 = $160 left.
[Q & A] The question is Ali has $480. He spent half of it on food, and then he spent a third of what was left on a pair of glasses. How much money did he have left?
The answer is 160

Step-by-step reasoning process: After losing one of the pages you have 12 - 1 = 11 pages of stickers. If each page has 20 stickers on it, you have 11 x 20 = 220 stickers.
[Q & A] The question is There are 20 stickers on a page. If you have 12 pages of stickers but lose one of the pages, then how many stickers would you have?
The answer is 220

Step-by-step reasoning process: First, find the total number of points Carl needs to earn across all the tests by multiplying his desired average by the number of tests: 85 * 4 = 340 marks. Then subtract all Carl's previous test scores to find the last score he needs to earn: 340 - 80 - 75 - 90 = 95 marks.
[Q & A] The question is Carl is taking a class where the whole grade is based on four tests that are graded out of 100. He got an 80, a 75 and a 90 on his first three tests. If he wants an 85 average for the class, what is the minimum grade he needs to get on his last test?
The answer is 95

Step-by-step reasoning process: Roger rode for 2 miles in the morning, and then 5 times that in the evening for 5 * 2 = 10 miles ridden in the evening. In total, that means Roger rode 2 + 10 = 12 miles over the course of the day.
[Q & A]
The question is Roger rode his bike for 2 miles this morning, and then 5 times that amount in the evening. How many miles did Roger ride his bike for?
The answer is 12