Percent Proportion Word Problems

Front

What is the formula to calculate the percentage?

Back

Percentage = (Part / Whole) x 100

Front

If a student scores 15 out of 20 on a test, what is their percentage score?

Back

Percentage = (15 / 20) x 100 = 75%.

Front

What does it mean if 60% of a group are boys?

Back

It means that for every 100 members of the group, 60 are boys.

Front

How do you find the total number of items if you know the percentage and the number of items that represent that percentage?

Back

Total = (Number / Percentage) x 100.

Front

If 30% of a class of 40 students are girls, how many girls are in the class?

Back

Number of girls = 30% of 40 = 0.30 x 40 = 12 girls.

Front

What is the percentage of 25 out of 50?

Back

Percentage = (25 / 50) x 100 = 50%.

Front

If a store has 80 items and 25% are sold, how many items are sold?

Back

Items sold = 25% of 80 = 0.25 x 80 = 20 items.

Front

What is the meaning of 'part' in a percentage problem?

Back

'Part' refers to the portion of the whole that is being considered.

Front

If 40% of a number is 24, what is the number?

Back

Number = 24 / 0.40 = 60.

Front

How do you convert a fraction to a percentage?

Back

Multiply the fraction by 100.