Lemma
MediumRatio & rate
AQuA-RAT train #7101 · Arithmetic · Ratio & rate

Two pipes can separately fill a tank in 20 and 30 hours…

Two pipes can separately fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is full, a leak develops in the tank through which one-third of water supplied by both the pipes goes out. What is the total time taken to fill the tank?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #7101

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