Query Detail : RRB NTPC (CBT, Stage 1)

If one inlet pipe full one tank in 5 hours. And one outlet pipe empty of tank in 36 hours .if open both individuals. How many outlets pipe necessary that water does not falls out of tank .when both open with .
Anand,   April 29th 2020,  
RRB NTPC (CBT, Stage 1)


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