Question 50

Select the correct option that will complete the series.
900, 450, 90, 45, 9, ?

$$900\times\ \frac{1}{2} = 450$$

$$450\times\ \frac{1}{5} = 90$$

$$90\times\ \frac{1}{2} = 45$$

$$45\times\ \frac{1}{5} = 9$$

$$9\times\ \frac{1}{2} = 4.5$$

Hence 4.5 will come in place of question mark.

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Select the correct option that will complete the series.900, 450, 90, 45, 9, ?