RRB ALP CBT I 17 Feb 2026 Shift 2 Paper

Concept:The second number is obtained by subtracting $12$ from the first number.Explanation:Observe the given pairs carefully.For $112 - 100$:$112 - 12 = 100$For $34 - 22$:$34 - 12 = 22$So the rule is:First Number $-$ $12$ = Second Number.This operation is applied on the whole number, not on its digits.Now verify each option using this rule.Option A: $43 - 23$$43 - 12 = 31 \neq 23$Option B: $23 - 12$$23 - 12 = 11 \neq 12$Option C: $15 - 3$$15 - 12 = 3$This matches the given relation.Option D: $55 - 42$$55 - 12 = 43 \neq 42$Only Option C satisfies the pattern.Answer:Option C. $15 - 3$