Question
Download Solution PDFঅবরোহ ক্রমে 5টি পরপর বিজোড় সংখ্যার গড় হল 95। অবরোহ ক্রমে চতুর্থ সংখ্যাটি নির্ণয়া করুন।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFঅনুসৃত ধারণা:
ধরি, 1 ম সংখ্যাটি n, তারপর 2য় সংখ্যা = (n - 2),
3য় সংখ্যা = (n - 4), 4র্থ সংখ্যা = (n - 6) এবং 5 ম সংখ্যা = (n - 8)প্রশ্ন অনুযায়ী,
⇒ 5n - 20 = 95 x 5
⇒ n = 495/5 = 99
এখন, 4র্থ সংখ্যা = (99 - 6) = 93
∴ সঠিক উত্তর হল 93
Last updated on Jul 17, 2025
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