Percent Proportions

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 25% means 25 out of 100.

Front

How do you calculate the percentage of a part compared to a whole?

Back

To calculate the percentage, divide the part by the whole and then multiply by 100. Formula: (Part/Whole) x 100.

Front

What is the formula to find the part when given the percentage and the whole?

Back

To find the part, use the formula: Part = (Percentage/100) x Whole.

Front

If 30 out of 150 students passed a test, what percent passed?

Back

20%. (30/150) x 100 = 20.

Front

What does it mean if a student scores 85% on a test?

Back

It means the student answered 85 out of 100 questions correctly, or 85 out of 100 points.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

What is the percentage of students who stayed at school if 94 out of 126 went on a field trip?

Back

25%. (32/126) x 100 = 25.

Front

If a student answered 36 questions correctly out of 40, what is the percentage of correct answers?

Back

90%. (36/40) x 100 = 90.

Front

What is 78 as a percent of 450?

Back

17%. (78/450) x 100 = 17.

Front

How many questions did a student answer correctly if they scored 85% on a 25-question test?

Back

21 questions. (0.85 x 25) = 21.