What will come in place of the question mark (?) in each of the following number series ?
9, 5, 6, 10.5, 23, ?
9*0.5 + 0.5 = 4.5 + 0.5 = 5
5*1 +1 = 5+1 =6
6*1.5 + 1.5 = 9+1.5 =10.5
10.5*2 + 2 = 21+2 = 23
23*2.5 + 2.5 = 57.5+2.5 = 60.
Option B is the right answer.
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