Question

Mindy read 8 pages oh her book the first day 15 pages the second day and 22 pages the third day. If the pattern continues how many pages of her book will she read on the sixth day?

Answer 1

43

Explanation:

the terms in the sequence are 8, 15, 22, ...

This is an arithmetic sequence with n th term given as

`a_(n)` =
`a_(1)` + (n - 1)d

where d is the common difference and
`a_(1)` the first term

here d = 22 - 15 = 15 - 8 = 7 and
`a_(1)` = 8, hence

`a_(6)` = 8 + (5 × 7) = 43

She reads 43 pages on the sixth day