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a) 5 days
b) 12 days
c) 15 days
d) 20 days
correct answer is:
d) 20 days
Here,
Men and Hours are inversely proportional to Days.
\therefore x=12\times\large\frac{25}{20}\normalsize\times\large\frac{8}{6}
\rightarrow x=20 days.
Ans: If 20 men work for 6 hours per day, it will take them 20 days to complete the work.
