SSC CHSL 2025 PYQ — Question 45

SSC CHSL - 30 Nov 2025 - Shift 2 • Reasoning • Q45

In the following question, four letter-number pairs are given. The letter-number on the left side of (–) is related to the letter-number on the right side of (–) with some Logic/Rule/Relation. Three pairs are similar on the basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.
(NOTE: Operations should be performed on the whole numbers, without breaking down the number 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: D

Explanation

1) 244BR – 488CU

B→C (+1), R→U (+3)

244 ×2 = 488

2) 196KP – 392LS

K→L (+1), P→S (+3)

196 ×2 = 392

3) 148LM – 296MP

L→M (+1), M→P (+3)

148 ×2 = 296

4) 256ZW – 502AZ

Z→A (+1 ), W→Z (+3)

256 × 2 = 512≠ 502

odd term =256ZW – 502AZ