document.write( "Question 1015232: The enrolment in a school this year is 552. 'This is an increase of 15% over last year's enrolment. How many were enrolled last year ? \n" ); document.write( "

Algebra.Com's Answer #631790 by algebra hello(55) $\"\"$ $\"About$

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let last year enrolment=x,then according to question x+x*15%=552 x+x*15/100=552 x(1+15/100)=552 x(115/100)=552 x=552*100/115 x=480 \n" ); document.write( "

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