On the basis of the logic used in the first pair, select from the substitute alternate question mark in the second pair.
72301 : 715 :: 31790 : ??

Question

Question

This question was previously asked in

RPF Constable (2018) Official Paper (Held On 03 Feb 2019)

Answer 1

The logic here followed is:

72301 : 715

⇒ 7 + 2 + 3 + 0 + 1 = 7 + 1 + 5

⇒ 13 = 13

Similarly,

31790 : ??

⇒ 3 + 1 + 7 + 9 + 0 = 20

Therefore, there is one option which digit sum is 20.

i.e. 9 + 7 + 4 = 20

Hence, the correct answer is "974".