அலைவெண் பரவலில் , ஒரு வகுப்பின் நடு மதிப்பு 12 மற்றும் அதன் அகலம் 6 ஆகும். எனவே வகுப்பின் குறைந்த வரம்பு:

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NTPC CBT-I (Held On: 5 Jan 2021 Shift 1)
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  1. `1
  2. 18
  3. 6
  4. 9

Answer (Detailed Solution Below)

Option 4 : 9
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கொடுக்கப்பட்டது:

வகுப்பின் நடு மதிப்பு = 12

அகலம் = 6

பயன்படுத்தப்படும் சூத்திரம்:

குறைந்த வரம்பு = மைய நடு - அகலம்/2

கணக்கீடு:

குறைந்த வரம்பு = 12 - 6/2

⇒ 12 - 3

⇒ 9

∴ வகுப்பின் குறைந்த வரம்பு 9 ஆகும்

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