A) 4 days
B) 5 days
C) 8 days
D) 10 days
Correct Answer: C
Solution :
The pan of field cultivated by A in 1 day \[=\frac{2}{5\times 6}=\frac{1}{15}\] The part of field cultivated by B in 1 day \[=\frac{1}{3\times 10}=\frac{1}{30}\] \[\therefore \]The part of field cultivated by A and B together \[=\frac{1}{15}+\frac{1}{30}=\frac{3}{30}=\frac{1}{10}\] \[\therefore \]\[\frac{4}{5}\]part of field cultivated by A and B together in \[=\frac{\frac{4}{5}}{\frac{1}{10}}\]days\[=\frac{4\times 10}{5}=8\]daysYou need to login to perform this action.
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