Question

find the number of terms in the seqence 32 29 26.....118

Answer 1

Answer:

here a = 32

d = - 3

nth term = 11

now using formula

nth term = a + (n - 1)d

11 = 32 +(n - 1)(-3)

-21 = -3n + 3

3n = 24

n = 8.