Home › Previous year questions › GATE 2022 PI › Question 3GATE 2022 PI – Question 3 General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 1 mark · Multiple choice
P and Q fill a tank in 10 and 6 minutes respectively. R drains 34 litres/min. All operate at constant rates. With all three operating, a full tank empties in one hour. Find tank capacity in litres.
26.8 60.0 120.0 127.5 Practise this question in The GATE Grind →
Show answer and explanation Correct answer: (C) 120.0
Explanation Let capacity be V litres. Net draining rate is $34-V/10-V/6=V/60$. Therefore $34=V(1/10+1/6+1/60)=17V/60$, giving **V = 120.0 litres, C**.
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