Question

If (k-3),(2k+1) and (4k+3) are three consecutive terms of an ap.find the value of k

Answer 1

Here they are in A.P. So-

2k+1-(k-3)=(4k+3)-(2k+1)

2k+1 -k +3 = 4k+3-2k -1

k+4=2k+2

k=2