6 Comments

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  tdawg January 14, 2011 at 12:04 pm

  5250?

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  Keval January 15, 2011 at 10:11 am

  I’d reckon that there is some mistake in the end part of solution solution of the given question.

  100 x 21/2= 50×21= 1050

  Please provide a detailed explanation for the end part of the solution.

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  sandeep January 15, 2011 at 11:44 am

  yaa …..the ans …is wrng …100 x21/2 = 1050……..plzzzz ………give the correct ans with explanation ……..of the ques

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  akshay January 15, 2011 at 9:33 pm

  according to me the answer is 7500.Please provide a detailed explanation for the given question.

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  Srinvas January 15, 2011 at 9:50 pm

  Yes, the end part is a mistake

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  tdawg January 18, 2011 at 10:02 am

  D final equation should be 2a^3+3a^2-3a+2=6
  so, answer = 21/4*1000 = 5250..