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A. 25 days
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B. 20 days
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C. 30 days
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D. 10 days
Explanation
10 men can complete the work in 20 days.This means the total work is:
10 men × 20 days = 200 man-days
Now, if 8 men work at the same rate:
200 man-days ÷ 8 men = 25 days
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A. 22
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B. 24
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C. None of these
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D. 26
Explanation
To find the solution, first, calculate the total man-days required for the job: 36 men * 18 days = 648 man-days.
Then, divide the total man-days by the new number of men (27) to find the new number of days: 648 man-days / 27 men = 24 days.
So, the correct answer is 24.
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