What will be the value of k so that (2k + 1), (5k 3) and (-8k + 5) are three consecutive terms of an AP?

What will be the value of k so that (2k + 1), (5k 3) and (-8k + 5) a

1.	What will be the value of k so that (2k + 1), (5k 3) and (-8k + 5) are three consecutive terms of an AP?
A.	4
B.	3
C.	( frac {3}{4} )
D.	( frac {4}{3} )
Answer» D. ( frac {4}{3} )