alleryA एक काम 16 दिवसांत करतो, B 8 दिवसांत करतो. A एकटा 4 दिवस काम करतो, नंतर B त्याला येऊन मिळतो. सुरुवातीपासून एकूण लागलेला वेळ:
A7 दिवस
B6 दिवस
C9 दिवस
D8 दिवस
Answer & Solution
Correct answer: D. 8 दिवस
A एकटा 1/4 काम करतो; उरलेला 3/4 भाग दररोज 3/16 या दराने करण्यास 4 दिवस लागतात, त्यामुळे एकूण 8 दिवस लागतात.
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