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Given series formed in definite pattern and next number follows the predecessor. 

1)

Find the next number of the series 2,4,3,9,4,16....


A) 20

B) 25

C) 5

D) 2

Answer:

Option C

Explanation:

The number follwed by its square.

 2 then$ 2^{2}$,

3 then $3^{2}$,

4 then $4^{2}$,

So, next number should be 5