Lemma
MediumRatio & rate
AQuA-RAT train #15069 · Arithmetic · Ratio & rate

Two fill pipes A and B can fill a cistern in 12…

Two fill pipes A and B can fill a cistern in 12 and 16 minutes respectively. Both fill pipes are opened together, but 4 minutes before the cistern is full, one pipe A is closed. How much time will the cistern take to fill ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #15069

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