A) \[10\frac{1}{2}\]days
B) \[6\frac{2}{3}days\]
C) \[\frac{4}{9}\] days
D) \[4\frac{4}{9}\]days
Correct Answer: D
Solution :
(d): Just like in question-2, we can solve it. Here, it will boil down to: Together, in 1 day \[\Rightarrow \frac{1}{8}+\frac{1}{10}=\frac{9}{40}\]. \[\therefore \]to finish full work \[=\frac{40}{9}=4\frac{4}{9}\]days
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