Choose the alternatives that will replace the question mark in the second pair based on the logic used in the first pair.

2136 : 12 :: 4315 : ??

This question was previously asked in
RPF SI (2018) Official Paper (Held On: 24 Dec, 2018 Shift 1)
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  1. 17
  2. 13
  3. 19
  4. 15

Answer (Detailed Solution Below)

Option 2 : 13
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Detailed Solution

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The logic followed here is:

Logic: Sum of the digits of 1st number = 2nd number.

Now,

For, 2136 : 12

⇒ 2 + 1 + 3 + 6 = 12.

For, 4315 : ??

⇒ 4 + 3 + 1 + 5 = 13.

Hence, the correct answer is Option 2.

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