document.write( "Question 532469: Mr. Quinton submitted the grades of his pupils in the following manner:Two-thirds got A's, 1/5 B's and the remaining 4 pupils got C's. How many pupils are there in Mr. Quinton's class \n" ); document.write( "

Algebra.Com's Answer #350849 by KMST(5328) $\"\"$ $\"About$

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Let the number of pupils in the class be $\"x\"$ .
\n" ); document.write( " $\"%282%2F3%29%2Ax\"$ got A's
\n" ); document.write( " $\"%281%2F5%29x\"$ got B's
\n" ); document.write( "Those number plus the 4 remaining students add up to the whole class
\n" ); document.write( " $\"%282%2F3%29x%2B%281%2F5%29x%2B4=x\"$
\n" ); document.write( " $\"%2813%2F15%29x%2B4=x\"$
\n" ); document.write( " $\"4=x-%2813%2F15%29x\"$
\n" ); document.write( " $\"4=%282%2F15%29x\"$
\n" ); document.write( " $\"x=4%2815%2F2%29\"$ so $\"x=30\"$ \n" ); document.write( "

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