Question

Which term of an arithmetic progression 369 dash is 27?

Answer 1

here,

a1=3

a2= 6

d = a2-a1

= 6 - 3

= 3

an= a+(n-1)3

27 =3+(n-1)3

27-3= 3(n-1)

24/3=n-1

8. =n-1

9=n

hence, 9th term of the AP is 27