Question

There are 630 students enrolled in a college this year. If the enrolment this year increased by 20 % over last
year, how many students were enrolled last year?
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Answer 1

Step-by-step explanation:

480 were enrolled last year . Step-by-step explanation: Let the no. of enrollment last year be x. There is an increase of 15 % in this.

Answer 2

Step-by-step explanation:

630 students enrolled this year.

enrollment increased this year by 20 %

therefore,

x+20%= 630

x+20/100=630

x×100+20/100=630

120x/100 =630

x= 630×100/120

x=525

therefore, 525 students enrolled last year .