alleryजर 12 माणसे एक काम 15 दिवसांत पूर्ण करू शकतात, तर 20 माणसे ते काम पूर्ण करतील
A9 दिवस
B10 दिवस
C8 दिवस
D12 दिवस
Answer & Solution
Correct answer: A. 9 दिवस
एकूण काम 12 x 15 = 180 मनुष्य-दिवस आहे, आणि 180/20 = 9 दिवस.
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