In the following question, select the missing number from the given series.
15, 7.5, 7.5, ?, 22.5, 56.25
The pattern followed is :
15 $$\times$$ $$0.5$$ = 7.5
7.5Â $$\times$$ $$1$$ =Â 7.5
7.5Â $$\times$$ $$1.5$$ =Â 11.25
11.25Â $$\times$$ $$2$$ =Â 22.5
22.5Â $$\times$$ $$2.5$$ =Â 56.25
=> Ans - (B)
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