Lemma
MediumRatio & rate
AQuA-RAT train #53846 · Arithmetic · Ratio & rate

A, B and C are pipes attached to a cistern

A, B and C are pipes attached to a cistern. A and B can fill it in 10 and 15 minutes respectively, While C can empty it in 20 minutes. If A, B and C be kept open successively for one minute each, find the last integral number of minutes required for the cistern to get filled

~8 minAnswer checked instantly

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #53846

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