Select the set in which the numbers are related in the same way as are the numbers of the following sets:
(7, 11, 72)
(5, 8, 39)
(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)
Answer & explanation
Correct answer: option 1
(7, 11, 72)
(5, 8, 39)
The logic followed here is :
(IInd number)2 - (Ist number)2 = IIIrd number
As
112 - 72 = 72
82 - 52 = 39
Same as in option 1
72 - 42 = 33