Question

If the nth term of an A.P is given by an= 3n, then 5th term of the A.P is​

Answer 1

15

Step-by-step explanation:

an=3n

so a.1=3×1=3

a.2=3×2=6

first term (a)=3

second term =6

Common difference (d)=6-3=3

n=5

Fifth term =a+(n-1)×d

=3+(5-1)×3

=3+4×3

=3+12

=15