Friday, 21 July 2023

Pipes and cisterien question


Three pipes, A, B, and C are attached to a tank. A and B can fill it in 16 and 24 minutes respectively while C can empty it in 12 minutes.If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled? 


 a)131    b)134      c)137    d)142