alleryA, B आणि C एकटे एक काम 30, 20 आणि 60 दिवसांत पूर्ण करू शकतात. तिघांना मिळून लागतील:
A12 दिवस
B8 दिवस
C10 दिवस
D15 दिवस
Answer & Solution
Correct answer: C. 10 दिवस
दररोजचे काम (2 + 3 + 1)/60 = 6/60 = 1/10 भाग आहे, म्हणून 10 दिवस.
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