A pump can fill a tank with water in 2 hours. Because of a leak, it took $$2\frac{1}{3}$$ hours to to fill the tank. The leak can drain all the water of the tank in?
A. $$4\frac{1}{3}$$ hours
B. 7 hours
C. 8 hours
D. 14 hours
Answer: Option D
Solution(By Examveda Team)
Work done by the leak in 1 hour$$\eqalign{ & {\text{ = }}\left( {\frac{1}{2} - \frac{3}{7}} \right) = \frac{1}{{14}} \cr} $$
∴ Leak will empty the tank in 14 hours
This Question Belongs to Arithmetic Ability >> Pipes And Cistern
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