If 4 men can do a job in 12 days, how long will 1 man take?
Correct answer: C. 48 days
- A. 24 days
- B. 36 days
- C. 48 days
- D. 60 days
Explanation
To find out how long 1 man would take to do the job alone, you first calculate the total work in man-days, which is the product of the number of men and the number of days they work together. Here, 4 men working for 12 days means the total work is 48 man-days (4 × 12 = 48). Therefore, 1 man would need 48 days to complete the same work alone. This makes Option C (48 days) the correct answer. Option A (24 days) and Option B (36 days) are both incorrect because they underestimate the amount of work, resulting in fewer total man-days. Option D (60 days) is incorrect because it exceeds the required 48 man-days.
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