Question

If 8th term of an ap is 31 and15the term is 16 more than 11th term find an ap

Answer 1

Answer:59;55;51;47... and So on

Step-by-step explanation:

a+7d=31....... equation (1)

a+14d+16=a+10d........ equation (2)

a+14d-10d-a=-16

4d=-16

d=-16/4

d=-4

Putting d in (1)

a+7(-4)=31

a=31+28

a=59

So here is the ap...

59;55;51;47...and so on