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In how many days 10 men can finish the work?
I. 10 women finish the work in 6 days.
II. 10 men and 10 women finish the work in 24/7 days.
III. If 10 women work 3 days and after that 10 men are deployed to work for women, the rest work is finished in 4 days.
I and II are sufficient
I and III are sufficient
Any two of three are sufficient.
II and III are sufficient.
From I and II, 10 men’s work in 1 day = (7/24 – 1/6) = 1/8 10 men can finish the work in 8 days. From II and III (1/x + 1/y) = 7/24 (3/x + 4/y) = 1 => y = 8 days From I and III (3/6 + 4/y) = 1 => y= 8 days.
Hence, option 3 is the correct answer.
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