alleryसहा माणसे 12 दिवसांत एक चबुतरा बांधतात. तो 8 दिवसांत बांधण्यासाठी लागणारी माणसे आहेत
A8
B9
C12
D10
Answer & Solution
Correct answer: B. 9
एकूण 6 x 12 = 72 मनुष्य-दिवस आहेत, आणि 72/8 = 9 माणसे.
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