A flat is shared by four first year undergraduate students. They agreed to allow the oldest of them to enjoy some extra space in the flat. Manu is two months older than Sravan, who is three months younger than Trideep. Pavan is one month older than Sravan. Who should occupy the extra space in the flat? A. Manu B. Sravan C. Trideep D. Pavan

GATE 2016 · General Aptitude · Logical Reasoning · medium

Answer: Trideep is the oldest (3 months older than Sravan) and should occupy the extra space. Answer: C.

1. Set Sravan as reference baseline: Let Sravan's age in months = S. All other ages will be expressed relative to S.
2. Compute Manu's age: age(Manu) = S + 2
3. Compute Trideep's age: age(Trideep) = S + 3
4. Compute Pavan's age: age(Pavan) = S + 1
5. Compare all ages: Sravan (S) < Pavan (S+1) < Manu (S+2) < Trideep (S+3). Trideep is the oldest.