Select the set in which the numbers are related in the same way as the numbers of the following set.
(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 /deleting /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)
(7, 3, 43) (5, 2, 21)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. (11,5,111).
The logic used here is:
(7, 3, 43)
72 = 49
49 - 3 × 2 = 49 - 6 = 43
(5, 2, 21)
52 = 25
25 - 2 × 2 = 25 - 4 = 21
Similarly,
(11, 5, 111)
112 = 121
121 - 5 × 2 = 121 - 10 = 111
Hence, option 1 is the correct answer.