Solving 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 '%'. For example, 50% means 50 out of 100.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 150, calculate 150 x 0.20 = 30.

Front

What is 10% of 50?

Back

5

Front

If 45% of 640 students walked to school, how many students rode the bus?

Back

352 students rode the bus.

Front

If 10 students represent 20% of a group, how do you find the total number of students?

Back

Divide the number of students (10) by the percentage (0.20). Total = 10 / 0.20 = 50 students.

Front

What is 20% of 150?

Back

30

Front

If an ice cream shop sold 48 milkshakes, which is 40% of total sales, how do you find total sales?

Back

Divide the number of milkshakes sold (48) by the percentage (0.40). Total = 48 / 0.40 = 120 milkshakes.

Front

What does it mean if a number is 25% of another number?

Back

It means that the first number is one-fourth of the second number.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 75% becomes 0.75.

Front

What is the formula to find the percentage of a number?

Back

Percentage = (Part / Whole) x 100.