RRB Junior Engineer / DMS / CMA 2019 · Question 2670 of 3719

A pipe P can drain out water from a tank in 20 hours. Another pipe Q can drain 20 litres per hour. If both drains are opened, the tank is emptied in 12 hours. What is the capacity of the tank?

Answer: C. 400 litres

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Source: RRB JE 2019 CBT-1 (2-June-2019 Shift 2) — cracku.in solved paper with answer key · reliable-secondary

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