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

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

A.

40

B.

25

C.

0

D.

15

Correct option is A

Given
Logic: Sum of side number = middle number
For, I
6 + 3 + 4 + 5 
= 18
For, II
4 + 7 + 11 + 3
= 25
Similarly for, III
12 + 10 + 13 + 5
= 40
Thus, correct option is (a).

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