Select the set in which the numbers are related in the same way as the numbers of the given sets.
(6, 31) (15, 211)
(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)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. (8, 57).
(6, 31) → 6 × 5 + 1 = 31
(15, 211) → 15 × 14 + 1 = 211
Similarly, (8, 57) → 8 × 7 + 1 = 57