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Q: A can cultivate $${2\over 5}$$ of a land in 6 days and b can cultivate $${1\over 6}$$ of the same land in 10 days. Working together A and B can cultivate $${4\over 5}$$ of the land in;

A. 4 days
B. 5 days
C. 8 days
D. 10 days
Answer» D. 10 days


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