Question

For what value of K with the term 2k+1,8and 3k form an ap

Answer 1

By using formula = 2b=a+c

A=2k+1
B=8
C=3k

2(8)=2k+1+3k
16=5k+1
5k=16-1
5k=15
K=15/5
K=5

Hope it helps