How many pages in a novel?

Question

On the first day of vacation, you read one quarter of a novel. On the second day, you read half of the remaining pages. On the third day, you read the last 135 pages of the novel.

how many pages does the novel have?

how many pages did you read by the end of the second day?

Answer 1

p-p/4 - (p-p/4)/2 = 135

3p/4 - 3p/8 = 135

3p/8 = 135

p = 135(8/3) = 45(8) = 360 pages total

1st day 360/4 = 90 pages read, 270 pages left

2nd day 270/2 = 135 pages read, 135 left

3rd day 135 pages read, none left

at the end of the 2nd day 135+90 pages= 225 pages read