Question
Download Solution PDFX 94টি প্রশ্নের উত্তর করার চেষ্টা করে এবং 141 নম্বর পায়। যদি প্রতিটি সঠিক উত্তরের জন্য 4 নম্বর দেওয়া হয়, এবং প্রতিটি ভুল উত্তরের জন্য 1 নম্বর কাটা হয়, তাহলে X দ্বারা ভুল উত্তর দেওয়া প্রশ্নের সংখ্যা কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFধরি সঠিক উত্তরের সংখ্যা M
ভুল উত্তরের সংখ্যা হবে 94 – M
⇒ 4 × M – (94 – M) = 141
⇒ 5M = 235
⇒ M = 47
∴ সে 47টি প্রশ্নের উত্তর দিয়েছে।
Last updated on Jul 19, 2025
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