A.P. ശ്രേണിയിലെ 5-ഉം 17-ഉം പദങ്ങൾ യഥാക്രമം 52 ഉം 184 ഉം ആണ്. ശ്രേണിയുടെ പൊതുവായ വ്യത്യാസം കണ്ടെത്തുക.

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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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നൽകിയത്:

5th = 52

11th = 184

ഉപയോഗിച്ച സൂത്രവാക്യം:

an = a1 + (n - 1) × d

an = nth സംഖ്യ 

a1 = ശ്രേണിയിലെ ആദ്യ സംഖ്യ 

d = സംഖ്യയിലെ വ്യത്യാസം 

കണക്കുകൂട്ടൽ:

ചോദ്യം അനുസരിച്ച്:

⇒ a1 + (5 - 1) d = 52

⇒ a1 + (17 - 1) d = 184

⇒ a1 + 4d = 52     ---(i)

⇒ a1 + 16d = 184     ---(ii)

രണ്ട് സമവാക്യങ്ങളും തുല്യമാക്കുമ്പോൾ നമുക്ക് ലഭിക്കുന്നത് 

⇒ d = 11

∴ ആവശ്യമായ പൊതുവായ വ്യത്യാസം = 11
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