Select the set in which the numbers are related similarly to the numbers of the following set.
7 — 14 — 23
4 — 11 — 20
(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)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 5 — 12 — 21.
Logic: 1st number + 7 = 2nd number; 2nd number + 9 = 3rd number
7 — 14 — 23 → 7 + 7 = 14; 14 + 9 = 23
4 — 11 — 20 → 4 + 7 = 11; 11 + 9 = 20
Similarly, 5 — 12 — 21 → 5 + 7 = 12; 12 + 9 = 21