Question
Download Solution PDFA किसी कार्य का \(1 \over 3\) भाग 7 दिनों में पूरा कर सकता है और B उसी कार्य का \(2 \over 7\) भाग 10 दिनों में पूरा कर सकता है। A और B दोनों मिलकर उसी कार्य को कितने दिनों में पूरा कर सकते हैं?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
A एक कार्य को पूरा कर सकता है = 7 × 3 = 21 दिन
B एक कार्य पूरा कर सकता है = 10 × (7/2) = 35 दिन
प्रयुक्त सूत्र:
कुल कार्य = दक्षता × समय
गणना:
| दक्षता | व्यक्ति | समय | कुल कार्य |
| 5 | A | 21 | 105 |
| 3 | B | 35 |
अब,
A और B द्वारा कार्य पूरा करने में लिया गया समय = 105/8
⇒ 13\(1\over8\) दिन
∴ सही उत्तर 13\(1\over8\) दिन है।
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