alleryदेव, ईशा से 50% अधिक कार्यकुशल है, जो अकेले एक कार्य को 30 दिनों में पूरा करती है। देव को अकेले यह कार्य पूरा करने में कितना समय लगेगा?
A15 दिन
B45 दिन
C25 दिन
D20 दिन
Answer & Solution
Correct answer: D. 20 दिन
देव की प्रतिदिन की कार्य दर = 1.5 x 1/30 = 1/20 है, अतः उसे अकेले 20 दिन लगेंगे।
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