AQuA-RAT train #56868 · Arithmetic · Ratio & rate
Pipes A, B and C can fill a tank in 30, 60…
Pipes A, B and C can fill a tank in 30, 60 and 120 minutes respectively. Pipes B and C are kept open for 10 minutes, and then Pipe B is shut while Pipe A is opened. Pipe C is closed 10 minutes before the tank overflows. How long does it take to fill the tank?
Its source gives only the correct option, without the working.
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #56868
Stuck? A gentle nudge
No hints for this one.
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