Question

The 7th term of an

a.p is 15 and the fourth term is 9. find the sequence fifth term

Answer 1

Hey sup!

As per the question,

Let the sequence be a,a+d,a+2d,a+3d....

So given,. a+6d = 15 and a+3d= 9.

Subtracting 7th term by 4th term.

=> a+6d-a-3d=15-9.

=> 3d=6.

=>d=6/3 = 2.

Substituting value of d in any term we get,

=>a+6d=15.

=>a+6×2=15.

=>a=15-12=3.

So the fifth term= a+4d= 3+4×2=3+8=11.

Hope it helps.

Answer 2

HOPE U LIKE IT.......