Question

60th term of -7, -1, 5, 11

Answer 1

60th term is 347

Explanation:

This is an arithmetic sequence with common difference = -1 - (-7) = 5 - (-1) = 11 -5 = 6

The nth term for such a series is given by
aₙ = a₁ + d(n-1) where d = common difference and a₁ is the first term

Here d = 6, a₁ = -7

So

aₙ = -7 + 6(n-1)

aₙ = -7 + 6n-6

aₙ = 6n-13

60th term is

a₆₀ = 6(60) - 13 = 360 - 13 = 347