Question

Find 18th term from end of the AP?
3, 6 , 9 , ………………………………. 183​

Answer 1

Step-by-step explanation:

we know that An= a+(n-1)d

a=3

d=3

n=18

now An=a+(n-1)d

A18= 3+(18-1)(3)

A18= 3+(17)(3)

A18= 3+51

A18= 54

so the 18th term of the series is 54