*If the areas of sectors in the circle graphs are drawn in proportion to the percentages shown, what is the measure, in degrees, of the central angle sector representing the percentage of juniors?On this problem, the key is to know that a circle measures 360 degrees.The third column represents the percentage of profits that each flavor made in 2002 as well as the total profits in dollars.*

With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve simple percent problems in basic arithmetic.

In this tutorial we will be solving problems involving percentages.

You write a ratio, just like you read it, left to right.

The simplified ratio of freshmen to seniors would be 10 to 3.

Taking 30% of the total of 6542 we get: 1963 is the number of sophomores in the Fall 2002 semester.

Using this found information we need to find out how many sophomores were enrolled in the Fall 2001 semester.

So if we know the percentage of the circle that a sector represents, then we can take that percentage of 360 degrees and find the measure of just that sector.

What percentage of the students were juniors in the Fall 2002 semester? So what would be the measure of the central angle for juniors for the Fall 2002 semester?

Taking 18% of the total of 360 degrees we get: The first column identifies the flavors of ice cream that made a profit.

The second column represents the percentage of profits that each flavor made in 2001 as well as the total profits in dollars.

## Comments How To Solve Word Problems With Percents

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