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প্রচুরক = 70 এবং গড় = 100 হলে, মধ্যক নির্ণয় করুন।

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Bihar STET Paper I: Mathematics (Held In 2019 - Shift 1)
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  1. 70
  2. 100
  3. 170
  4. 90

Answer (Detailed Solution Below)

Option 4 : 90
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Detailed Solution

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অনুসৃত ধারণা:

গড় - প্রচুরক = 3 (গড় - মধ্যক)

গণনা:

প্রচুরক = 70, গড় = 100

অতএব, 100- 70 = 3(100 - মধ্যক)

30 = 300 - 3 x মধ্যক

3 x মধ্যক = 300 - 30 = 270

মধ্যক = 270/3 = 90

সুতরাং, সঠিক উত্তর হল বিকল্প 4

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