GED math percents

What is 25% of 200?

25% of 200 is 50. Calculation: $\displaystyle 200 imes 0.25 = 50$.

True or false: A 30% discount means you pay 70% of the price.

True, because 100% - 30% = 70% of the original price.

Fill in the blank: 50% of a number is the same as ___ the number.

50% of a number is the same as half the number.

What is the percent increase from 50 to 75?

The percent increase is 50%. Calculation: $\displaystyle \\frac{75 - 50}{50} \times 100 = 50$.

Difference between 20% and 30%.

20% is lower than 30% by 10%.

True or false: 15% of 300 is 45.

True, because $\displaystyle 300 \times 0.15 = 45$.

If you buy a shirt for $40 with a 20% off, what’s the sale price?

The sale price is $\displaystyle 32. Calculation:$40 - (40 \times 0.20) = 32$.

How to find 10% of any number?

To find 10%, divide the number by 10.

What is 60% of 150?

60% of 150 is 90. Calculation: $\displaystyle 150 \times 0.60 = 90$.

Fill in the blank: A 50% increase on $200 results in ___ dollars.

A 50% increase on $\displaystyle 200 results in$300.

Which is greater: 25% of 200 or 30% of 150?

25% of 200 (50) is greater than 30% of 150 (45).

What is the percent decrease from 80 to 60?

The percent decrease is 25%. Calculation: $\displaystyle \\frac{80 - 60}{80} \times 100 = 25$.

If a car costs $20,000 and depreciates by 15%, what is its new value?

The new value is $\displaystyle 17,000. Calculation:$20,000 - (20,000 \times 0.15) = 17,000$.

True or false: 40% of 250 is greater than 20% of 500.

True, because 40% of 250 is 100 and 20% of 500 is 100.

If you earn $500 a week, what is 10% of your weekly pay?

10% of $\displaystyle 500 is$50. Calculation: $\displaystyle 500 \times 0.10 = 50$.