In a tank there are three inlet pipes P - Q and R and one outlet pipe S. Pipe R fills the tank two times faster than pipe P and three times faster than pipe Q. Outlet S takes 10 minutes to empty the full tank. Time taken by inlet R to fill the empty tank is 2/5 th of the time taken by S to empty the full tank. In what time will the inlets P and Q together fill the empty tank ?'

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In a tank there are three inlet pipes P - Q and R and one outlet pipe S. Pipe R fills the tank two times faster than pipe P and three times faster than pipe Q. Outlet S takes 10 minutes to empty the full tank. Time taken by inlet R to fill the empty tank is 2/5 th of the time taken by S to empty the full tank. In what time will the inlets P and Q together fill the empty tank ?'






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