42 is related to 21 following a certain logic. Following the same logic, 26 is…

42 is related to 21 following a certain logic. Following the same logic, 26 is related to

13. To which of the following is 68 related following the same logic?

(NOTE: Operations should be performed on the whole numbers, without breaking

down the numbers into its 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.)