2, 7, 12, _____ എന്ന സമാന്തര ശ്രേണിയുടെ പത്താമത്തെ പദം  എന്തായിരിക്കും?

This question was previously asked in
Official Soldier Technical Paper: [IRO Delhi] - 2020
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  1. 245
  2. 243
  3. 297
  4. 47

Answer (Detailed Solution Below)

Option 4 : 47
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നൽകിയിരിക്കുന്നത് 

2, 7, 12, ____________

ഉപയോഗിച്ച ആശയം 

Tn = a + (n - 1)d

ഇവിടെ a = ആദ്യ പദം, n = പദങ്ങളുടെ എണ്ണം d = വ്യത്യാസം 

കണക്കുകൂട്ടൽ 

നൽകിയിരിക്കുന്ന ശ്രേണിയിൽ 

a = 2

d = 7 - 2 = 5

T10 = 2 + (10 - 1) 5

T10 = 2 + 45

T10 = 47

പത്താമത്തെ പദം = 47

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