document.write( "Question 474825: If the ratio of male students to female students in a class is 4:3, which of the following CANNOT be the number of students in the class? \r
\n" ); document.write( "\n" ); document.write( "A) 14
\n" ); document.write( "b) 21
\n" ); document.write( "C) 28
\n" ); document.write( "D) 30
\n" ); document.write( "E) 35\r
\n" ); document.write( "\n" ); document.write( "Please explain and show me how I can approach and solve this problem, thanks! \n" ); document.write( "

Algebra.Com's Answer #325615 by Edwin McCravy(20063) $\"\"$ $\"About$

You can put this solution on YOUR website!
If the ratio of male students to female students in a class is 4:3, which of the following CANNOT be the number of students in the class? \r
\n" ); document.write( "\n" ); document.write( "A) 14
\n" ); document.write( "b) 21
\n" ); document.write( "C) 28
\n" ); document.write( "D) 30
\n" ); document.write( "E) 35\r
\n" ); document.write( "\n" ); document.write( "Please explain and show me how I can approach and solve this problem, thanks!
\n" ); document.write( "


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document.write( "Since the ratio is 4:3, add them and get 7, so that means
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document.write( "that 4/7ths of them are males and 3/7ths are females, and that
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document.write( "there must be a multiple of 7 students, otherwise we'd get a
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document.write( "fraction when we took those fractions of them, and we can't have 
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document.write( "a fraction of a student.\r
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document.write( "The only choice among those 5 that 7 won't divide evenly into is 30.
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document.write( "So the answer is D)\r
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document.write( "Edwin\n" );
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