Question
Download Solution PDFA ও B একত্রে একটি কাজ 12 দিনে করে, B ও C একত্রে সেটি 15 দিনে করে, C ও A একত্রে সেটি করে 20 দিনে। A, B ও C একসাথে কাজ করলে একই কাজ করতে কত দিন সময় লাগবে?
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A ও B একত্রে একটি কাজ 12 দিনে করে
B ও C একত্রে সেটি 15 দিনে করে
C ও A একত্রে সেটি করে 20 দিনে
অনুসৃত ধারণা:
সম্পন্ন কাজ সময়ের ব্যস্তানুপাতিক
সমাধান:
12, 15, ও 20-এর ল.সা.গু = 60
A + B = 60/12 = 5
B + C = 60/15 = 4
C + A = 60/20 = 3
2(A + B + C) = 12
A + B + C = 6
তিনজনের সময় লাগে = 60/6 = 10
সুতরাং, A, B, ও C একত্রে কাজ করলে সেটি শেষ হবে 10 দিনে।
Last updated on Jun 26, 2025
-> The Staff Selection Commission has released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.
-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.
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-> The candidates who will be appearing for the 2026 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.