SBI PO 02 July 2016 Shift 2 Paper

The pattern is :
5 × 0.5 + 0.5 = 2.5 + 0.5 = 3
3 × 1 + 1 = 3 + 1 = 4
4 × 1.5 + 1.5 = 6 + 1.5 = 7.5
7.5 × 2 + 2 = 15 + 2 = 17
17 × 2.5 + 2.5 = 42.5 + 2.5= 45
45 × 3 + 3 = 135 + 3 = 138