Question

Find the 66th term in the following arithmetic sequence
-92, -85, -78, -71

Answer 1

The 66th term is 363.

Explanation:

Here,

a = -92 b = -85

d = b - a = -85 -(-92) = 7

n = 66

t66 = ?

We know,

tn = a+(n - 1)d

t66 = -92+(66 - 1)7

= 363