alleryA, B आणि C मिळून एक काम 4 दिवसांत संपवतात; A आणि B ला मिळून 6 दिवस लागतात. C ला एकट्याला लागतील:
A8 दिवस
B12 दिवस
C10 दिवस
D24 दिवस
Answer & Solution
Correct answer: B. 12 दिवस
C चा दररोजचा दर 1/4 - 1/6 = 2/24 = 1/12 आहे, म्हणून 12 दिवस.
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