alleryA और B की कार्यक्षमता का अनुपात 4:5 है और दोनों को मिलकर कार्य पूरा करने में 20 दिन लगते हैं। अकेले A को कितने दिन लगेंगे?
A40 दिन
B36 दिन
C50 दिन
D45 दिन
Answer & Solution
Correct answer: D. 45 दिन
कुल कार्य = 9 इकाई × 20 दिन = 180 इकाई, और A प्रतिदिन 4 इकाई कार्य करता है, अतः 180 / 4 = 45 दिन लगेंगे।
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