Question 47

Select the number that can replace the question mark (?) in the following series.
5, 5, 15, 75, 525, ?

Solution

The logic here is

5 x 1 = 5

5 x 3 = 15

15 x 5 = 75

75 x 7 = 525

Numbers of the series are multiplied by consecutive odd number.

Similarly, the next number in the series = 525 x 9 = 4725

Hence, the correct answer is Option C

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Select the number that can replace the question mark (?) in the following series.5, 5, 15, 75, 525, ?