SOLUTION: 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 ?

SOLUTION: 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 ?

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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 ?
Answer by algebra hello(55) (Show Source): You can put this solution on YOUR website!
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
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