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4 is related to 10 following a certain logic. Following the same logic, 34 is related to 40.  To which of the following is 66 related, following
Question

4 is related to 10 following a certain logic. Following the same logic, 34 is related to 40.  To which of the following is 66 related, following the same logic?
(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 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.

70

B.

68

C.

72

D.

74

Correct option is C

Given:
4 → 10, 34 → 40
66 → ?
Logic: Add 6 to the number.
​4 → 10
4 + 6 = 10 
​34 → 40
34 + 6 = 40 
Similarly,
​66 → ?
66 + 6 = 72 
So, 66 → 72
Thus, the correct option is: (c). 72

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