Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
(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.)
17 : 82
31 : 158
19 : 92
47 : 232

Question

Question

This question was previously asked in

SSC CHSL Exam 2023 Tier-I Official Paper (Held On: 02 Aug, 2023 Shift 3)

Answer 1

The logic followed here is:

Logic: 1st number × 5 - 3 = 2nd number.

Now,

For, 17 : 82

⇒ 17 × 5 - 3

⇒ 85 - 3 = 82.

For, 31 : 158

⇒ 31 × 5 + 3

⇒ 155 + 3 = 158.

For, 19 : 92

⇒ 19 × 5 - 3

⇒ 95 - 3 = 92.

For, 47 : 232

⇒ 47 × 5 - 3

⇒ 235 - 3 = 232.

Here, Option 1 '31 : 158' is different from the given pairs.

Hence, the correct answer is "Option 1".