document.write( "Question 252107: A box contains fewer than 50 marbles. Each marble is either red or white. The probability of randomly choosing a red marble is 2/5. What is the largest number of white marbles that could be in the box?\r
\n" ); document.write( "\n" ); document.write( "A 18 b 27 c 31 d 45 e 49
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Algebra.Com's Answer #183872 by vksarvepalli(154)\"\" \"About 
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ans:27\r
\n" ); document.write( "\n" ); document.write( "since the prob. of choosing a red marble is 2/5.\r
\n" ); document.write( "\n" ); document.write( "if there are are 20 red marbles then there should be 50 marbles overall.
\n" ); document.write( "but they should be less than 50\r
\n" ); document.write( "\n" ); document.write( "so if there are 19 red then there should be 47.5(for 2/5 prob) marbles which is not possible as it is not an whole number\r
\n" ); document.write( "\n" ); document.write( "so if there are 18 marbles then there will be 45 marbles overall and the no of white marbles will be 27 which is the maximum possible.
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