Question

In an AP 3rd term is 5 and 7th term is 9 then the common difference is

Answer 1

Answer:

Common difference will be 1

Step-by-step explanation:

We have given in AP the third term is 5 and 7th term is 9

We know that in AP the nth term is given by

$T_n=a+(n-1)d$

$5=a+(3-1)d$

$a+2d=5$-------eqn 1

And 7th term is 9

So $9=a+(7-1)d$

$a+6d=9$------eqn 2

After solving eqn 1 and eqn 2

d = 1

So common difference will be 1

Answer 2

Answer:

1

Step-by-step explanation:

1 is the answer