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The sum of the series : (2)^2+2(4)^2+3(6)^2+ upto 10 terms is :

Options

  1. A11300
  2. B11200
  3. C12100
  4. D12300

Correct answer

C. 12100

Step-by-step solution

2^2+2(4)^2+3(6)^2+ upto 10 terms =2^2 [1^3+2^3+3^3+ . upto 10 terms ]=4 ( 10 11 2 )^2=12100

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