Question
Daniel completed reading a book in 6 days. Each day, he read 4 pages more than
the previous day. Given that he read 36 pages on the 3rd day, find the total number
of pages in the book.
the previous day. Given that he read 36 pages on the 3rd day, find the total number
of pages in the book.
Answers
oobleck
you have an AP with d = 4
so, a+2d = 36, and a = 28
total pages in 6 days is thus
6/2 (2a+5d) = ____
so, a+2d = 36, and a = 28
total pages in 6 days is thus
6/2 (2a+5d) = ____