Bangla Exam Practice Library

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দুইটি বৃত্তের ব্যাসার্ধের অনুপাত ৪ঃ৫। বৃত্ত দুইটির ক্ষেত্রফলের অনুপাত কত ?

  1. A ১৬ঃ২৫
  2. B ১৬ঃ৫
  3. C ২৫ঃ১৬
  4. D ৪ঃ২৫
Answer: A - ১৬ঃ২৫

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