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Study the given pattern carefully and select the number that can replace the question mark (?) in it. (6, 4, 6) (18, 9, 13) (8, 6, ?) (NOTE: Operation
Question

Study the given pattern carefully and select the number that can replace the question mark (?) in it.
(6, 4, 6)
(18, 9, 13)
(8, 6, ?)
(NOTE: Operations should be performed on the whole numbers without breaking down the numbers into their constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

A.

8

B.

14

C.

4

D.

6

Correct option is D

Given -(6, 4, 6)
(18, 9, 13)
(8, 6, ?)

The logic is:
Third Number=First Number−Second Number+4
Verification
(6, 4, 6)
6 − 4 + 4 = 6 

(18, 9, 13)
18 − 9 + 4 = 13 
(8, 6, ?)
8 − 6 + 4 = 6 

Final Answer
The missing number is 6
Final Correct Option
(d) 6 

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