$A$ tap can fill a tank in $25$ $minutes$ and another can empty it in $50$ $minutes$. Find out whether the tank will be filled up or emptied and in how many $minutes$?
- AThe tank is filled up in $50$ $minutes$.
- BThe tank is emptied in $25$ $minutes$.
- CThe tank is filled up in $25$ $minutes$.
- DNone of these
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