Read the following graph and answer the questions below
The diagram below shows the enrolment of students in a school in different years, from 2014 to 2017.
The percentage increase in the enrolment of students in the year 2017 over the year 2016.
In the year 2016 & 2017 ,number of students was 250&450 respectively.
So, percentage increased
$$=(450-250)/250=80 percent.$$
A is correct choice.
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