SSC CHSL 2025 PYQ — Question 45

SSC CHSL - 28 Nov 2025 - Shift 1 • 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: A

Explanation

1) 108CX – 216DB

C → D (+1)

X → B (+4, not +3)

108 → 216 (×2)

2) 132DR – 264EU

D → E (+1)

R → U (+3)

132 → 264 (×2)

3) 244AH – 488BK

A → B (+1)

H → K (+3)

244 → 488 (×2)

4) 296PU – 592QX

P → Q (+1)

U → X (+3)

296 → 592 (×2)

Option 1 is different