Percentage Word Problems

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

How do you calculate the percentage of a number?

Back

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

Front

What is the formula to find the total amount from a percentage?

Back

Total Amount = (Part / Percentage) * 100.

Front

If 30% of a metal bar is gold and the bar weighs 40 pounds, how do you find the weight of the gold?

Back

Multiply the total weight (40 pounds) by the percentage of gold (0.30): 40 * 0.30 = 12 pounds.

Front

How do you calculate the tip amount based on a percentage?

Back

Tip Amount = Total Bill * (Tip Percentage / 100).

Front

What is the formula to find the percentage of seats sold in a theater?

Back

Percentage of Seats Sold = (Number of Seats Sold / Total Seats) * 100.

Front

If 15 students passed a test and they represent 75% of the class, how do you find the total number of students?

Back

Total Students = Passed Students / (Percentage Passed / 100).

Front

How do you convert a fraction to a percentage?

Back

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

Front

What is the percentage score if a student answers 21 out of 84 questions correctly?

Back

Percentage Score = (Correct Answers / Total Questions) * 100 = (21 / 84) * 100 = 25%.

Front

What does it mean if a value is increased by a certain percentage?

Back

It means that the original value is increased by that fraction of itself. For example, increasing by 20% means adding 20% of the original value to itself.