There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold 9 times as many paperback copies as hardback copies were sold. If a total of 441,000 copies of the novel were sold in all, how many paperback copies were sold?

সঠিক উত্তর

364,500

সঠিক উত্তর: 364,500

Question

There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold 9 times as many paperback copies as hardback copies were sold. If a total of 441,000 copies of the novel were sold in all, how many paperback copies were sold?

সঠিক উত্তর

364,500

Accepted Answer

সঠিক উত্তর: 364,500। ব্যাখ্যা: Question: There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold 9 times as many paperback copies as hardback copies were sold. If a total of 441,000 copies of the novel were sold in all, how many paperback copies were sold?Solution: From the time the first paperback copy was sold until the last copy of the novel was sold 9 times as many paperback copies as hardback copies were sold Let,x = number of hardback copies sold during this time ∴ 9x = number of paperback copies sold during this time ∴ x + 9x = total number of copies sold DURING THIS TIME PERIOD A total of 441,000 copies of the novel were sold in all 36,000 hardback copies sold BEFORE the paperback version was issued.So, we get: 36,000 + x + 9x = 441,000 ⇒ 36,000 + 10x = 441,000 ⇒ 10x = 405,000 ∴ x = 40,500 ∴ 9x = 9(40,500) = 364,500 ∴ 364,500 paperback copies were sold এই প্রশ্নটি সহ গাণিতিক যুক্তি বিষয়ের আরও প্রশ্ন মেধাবীর ফ্রি ইন্টারেক্টিভ কুইজে সাথে সাথে ফলাফল ও ব্যাখ্যাসহ অনুশীলন করা যায়।

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