Question 48
Select the number that can replace the question mark (?) in the following series.
2, 3, 6, 15, ?, 157.5, 630
Solution
Given series is 2, 3, 6, 15, ?, 157.5, 630
The logic here is
2 x 1.5 = 3
3 x 2 = 6
6 x 2.5 = 15
Similarly, the next number = 15 x 3 = 45
45 x 3.5 = 157.5
157.5 x 4 = 630
$$\therefore\ $$The required number = 45
Hence, the correct answer is Option D
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