Question

ak+ 1, 13, 5k- 3 or 3 consecutive term of AP find the k value

Answer 1

as k+1 13 5k-3 or 3 are consecutive terms 
then taking 5k-3 or 3 (from ques)
   then 5k-3=3 
              5k=3+3
                k=6/5

:)Hope this would help u...