Select the set in which the numbers are related in the same way as the numbers of the following sets.
(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)
(17, 153, 81) (19, 171, 81)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. (15, 135, 81).
The logic used here is:
(17, 153, 81)
153 ÷ 17 = 9
92 = 81
(19, 171, 81)
171 ÷ 19 = 9
92 = 81
Similarly,
(15, 135, 81)
135 ÷ 15 = 9
92 = 81
Hence, (15, 135, 81) is the correct answer.