A) 16 h
B) 20 h
C) 32 h
D) 40 h
Correct Answer: D
Solution :
[d] Let leak will empty the tank in x h. \[\therefore \] \[\frac{1}{8}-\frac{1}{x}=\frac{1}{10}\] \[\Rightarrow \] \[\frac{1}{x}=\frac{5-4}{40}=\frac{1}{40}\] \[\therefore \] \[x=40\,h\] |
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