Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(10, 8, 65)
(16, 6, 81)
(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 /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.)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. (7, 5, 20).
(10, 8, 65) → 10 × 8 - 15 = 65
(16, 6, 81) → 16 × 6 - 15 = 81
Similarly, (7, 5, 20) → 7 × 5 - 15 = 20