Question

Section - 1
1. Which term of the A.P. 37,32,27, 22, ... is -18?​

Answer 1

Answer:

an = a + (n - 1)d

-18 = 37 + (n - 1)(-5)

-18 -37 = (n - 1)(-5)

-55 = (n - 1)(-5)

-55/-5 = n - 1

11 = n - 1

n = 11 + 1

n = 12