Percent Problems

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 '%'.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (in decimal form) and then divide by 100.

Front

What is 40% of 100?

Back

40

Front

If 60% of a class of 30 students are girls, how many girls are there?

Back

18 girls (30 x 0.60 = 18).

Front

What is the formula to find the percent grade?

Back

Percent grade = (Points earned / Total points) x 100.

Front

If a student scored 45 out of 60 on a test, what is their percent grade?

Back

75% (45/60 x 100 = 75%).

Front

What is 30% of 80?

Back

24 (0.30 x 80 = 24).

Front

How do you find what percent one number is of another?

Back

Divide the first number by the second number and multiply by 100.

Front

What is 72 as a percent of 150?

Back

48% (72/150 x 100 = 48%).

Front

If a pitcher won 80% of 35 games, how many games did he win?

Back

28 games (0.80 x 35 = 28).