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একটি সংখ্যা 301 হতে যত বড় 381 হতে তত ছোট। সংখ্যাটি কত?

Options :

  • (A) 340
  • (B) 341
  • (C) 342
  • (D) 344

2 Answers

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Best answer
ধরি সংখ্যাটি x

তাহলে,

x-301 = 381-x

বা, x+x = 381+301

বা, 2x = 842

$\therefore$ x = 341
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সংখ্যাটি 301 থেকে 381 এর মধ্যবর্তী স্থানে অবস্থিত।

সুতরাং (381-301) = 80 ভাগ 2 = 40

অর্থাৎ মাঝখানের সংখ্যাটি হবে 301 থেকে 40 বড়, মানে 341

বা, 381 থেকে 40 ছোট, মানে 341

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