alleryA, B और C मिलकर एक कार्य को 4 दिनों में पूरा करते हैं; A और B को एक साथ 6 दिन लगते हैं। C को अकेले कितना समय लगेगा?
A8 दिन
B12 दिन
C10 दिन
D24 दिन
Answer & Solution
Correct answer: B. 12 दिन
C की प्रतिदिन की कार्य दर = 1/4 - 1/6 = 2/24 = 1/12 है, अतः C को अकेले 12 दिन लगेंगे।
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