Select the triad in which the numbers are related in the same way as are the numbers of the given triads.
(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.)
(11, 1, 10)
(13, 7, 90)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. (4, 5, 19).
(11, 1, 10) → 11 × 1 - 1 = 10
(13, 7, 90) → 13 × 7 - 1 = 90
Similarly, (4, 5, 19) → 4 × 5 - 1 = 19