Question
Download Solution PDFA এবং B একা একটি কাজ যথাক্রমে 4 এবং 9 দিনে করতে পারে। B দিয়ে শুরু করে উভয়ে একান্তর দিনে কাজ করলে, কত দিনে কাজটি শেষ হবে?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
A একটি কাজ করতে পারে = 4 দিনে
B একটি কাজ করতে পারে = 9 দিনে
অনুসৃত সূত্র:
মোট কাজ = দক্ষতা × সময়
গণনা:
| দক্ষতা | ব্য়ক্তি | সময় | মোট কাজ |
| 9 | A | 4 | 36 |
| 4 | B | 9 |
অতএব,
(B + A) = 4 + 9 = 13 একক = 2 দিন
⇒ (13 × 2) = 26 একক = (2 × 2) = 4 দিন
⇒ 30 একক = 5 দিন
⇒ 36 একক = 5 + (6/9) = 5\(2\over3\) দিন
∴ সঠিক উত্তর হল 5\(2\over3\) দিন।
Last updated on Jul 19, 2025
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