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[" 9.Let A be the sum of the first "20" ...

[" 9.Let A be the sum of the first "20" terms and "B" be the sum of the fist "40" terms "],[" of theseries "1^(2)+2.2^(2)+3^(2)+2.4^(2)+5^(2)+2.6^(2)+.....],[" If "B-2A=100 lambda" ,then "lambda" is equal to : "],[[" (a) "496," (b) "232],[" (c) "248," (d) "464," (1) "12]]

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