Question

The first term and the common difference of an A.P are 12 and 4 respectively. If tn=96, find n

explain it step by step. ​

Answer 1

Answer:

we know ,

tn=a+(n-1).d

here a=1st term=12

d= common difference=4

tn=nth term

so,

12+(n-1).4=96

=> (n-1).4=96-12

=> (n-1).4=84

=> (n-1)=84/4

=> n-1=21

=> n=21+1

=> n=22

so, n=22