Question

Which term of the AP: -3, -1/2, 2, 9/2....... is 27​

Answer 1

Answer:

a=-3

d=-1/2-(-3)

-1/2+3=5/2

An=27

a+(n-1)d=37

-3+(n-1)5/2=27

(n-1)5/2=30

n-1=30×2/5

n-1=12

n=13

13th term of ap is 27