A completes a job in 20 days and B in 30 days. Together they complete it in:
Correct Answer: D. 12 days
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A completes a job in 20 days and B in 30 days. Together they complete it in:
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A completes a job in 20 days and B in 30 days. Together they complete it in: - MCQ Explanation
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Correct answer: D. 12 days