Question

In an ap the sum of 2nd and 5th term is 29 and the sum of 3rd and 7th term is 20 write the ap

Answer 1

Answer:

Step-by-step explanation:

a2 + a5 ,= 29

=>a+d+a+4d=29

=2a+5d=29. (1)

Also

a3+a7,=20

a+2d,+a+6d=20

2a+8d=20 (2)

Subtract eq (2) from eq (2)

2a+8d=20

2a+5d=29

-. -. = -

________-

3d = -9

d = -3

Substitute value of d in (1)

a = 22

Thus the AP is

22, 19, 16, 13.....{

Hope it is clear.