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Study the given pattern carefully and select the number from the given options that can replace the question mark (?).​
Question

Study the given pattern carefully and select the number from the given options that can replace the question mark (?).

A.

5

B.

25

C.

625

D.

125

Correct option is C

Given: 
Logic:
(Left Number in Base)2 =  Right Number In Base

(Right side number in Base)Middle Number = Top Number 
First Triangle:
Base: 1 (Left), 1 (Right)
1 → 1
(1)² = 1
1 → 1
(1)² = 1
Second Triangle:
Base: 2 (Left), 4 (Right)
2 → 4
(2)² = 4
4 → 16
(4)² = 16
Third Triangle:
Base: 5 (Left), 25 (Right)
5 → 25
(5)² = 25
25 → ?
(25)² = 625
? = 625
Thus, he correct optio is (c) 625

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