Question

If k-1,k+3,3k-1 are in A.P; then find k?

Answer 1

Answer:

k=4

Step-by-step explanation:

k+3-k+1=3k-1-k-3

4=2k-4

2k=8

k=4

Answer 2

Answer:

As we know tht :2b = a+ c

so.. 2(k+3 ) = K-1 + 3k-1

2k+6=4k-2

2k-4k=-2-6

-2k=-8

Hence K = 4