9 এবং 81 এর গুণোত্তরীয় মধ্যক কত?

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RRB ALP Electrician 22 Jan 2019 Official Paper (Shift 2)
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  1. 27
  2. 24
  3. 21
  4. 30

Answer (Detailed Solution Below)

Option 1 : 27
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সূত্র:

a এবং b এর গুণোত্তরীয় মধ্যক = √ab

প্রদত্ত:

a = 9, b = 81, x = গুণোত্তরীয় মধ্যক

গণনা:

x = √729

⇒ x = 27

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