Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B a

Question

Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely ?

plz explain in detail

thanks

Answer 1

i think there is 2 probleam 1st the pipe line stck with dearty and 2nd is you have air in your tank you must have to clean tank and tell me what you get