கூட்டல் தொடரின்  5வது மற்றும் 17வது உறுப்புகள். முறையே 52 மற்றும் 184 ஆகும். கூட்டுத்தொடரின்  பொது வேறுபாட்டைக் கண்டறியவும்.

This question was previously asked in
ALP CBT 2 Physics and Maths Previous Paper 5 (Held On: 22 Jan 2019 Shift 2)
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  1. 7
  2. 5
  3. 11
  4. 9

Answer (Detailed Solution Below)

Option 3 : 11
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Detailed Solution

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கொடுக்கப்பட்டது:

5வது = 52

11வது = 184

பயன்படுத்தப்படும் சூத்திரம்:

a= a+ (n - 1) × d

a= n வது எண்

a1 = தொடரில்  1வது எண்

d = எண்களில் உள்ள வேறுபாடு

கணக்கீடு:

கேள்வியின் படி:

⇒ a+ (5 - 1) d = 52

⇒ a1 + (17 - 1) d = 184

⇒ a+ 4d = 52     ---(i)

⇒ a+ 16d = 184     ---(ii)

இரண்டையும் சமன் செய்தால் நமக்குக் கிடைப்பது

⇒ d = 11

∴ தேவையான பொது வேறுபாடு = 11

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