Decimal Numbers, Fractions, and Percentages Quiz

Calculate the profit percentage if the selling price is $1200 and the cost price is $1000?

Convert the fraction 3/5 to a decimal and then to a percentage.

If an item originally costs $80 but is on sale at a 25% discount, what is the sale price?

What is the profit percentage if the selling price is $1500 and the cost price is $1200?

If an item originally costs $200 but is on sale at a 40% discount, what is the sale price?

Convert the fraction 7/8 to a decimal and then to a percentage.

Profit Percentage Calculations

To calculate profit percentage, use the formula: (Selling Price - Cost Price) / Cost Price × 100
Example: Selling Price = $1200, Cost Price = $1000, Profit Percentage = ($1200 - $1000) / $1000 × 100 = 20%

Converting Fractions to Decimals and Percentages

To convert a fraction to a decimal, divide the numerator by the denominator
Example: 3/5 = 3 ÷ 5 = 0.6
To convert a decimal to a percentage, multiply by 100
Example: 0.6 × 100 = 60%

Discounts and Sale Prices

To calculate sale price, subtract discount amount from original price
Example: Original Price = $80, Discount = 25%
Discount Amount = $80 × 0.25 = $20
Sale Price = $80 - $20 = $60

More Profit Percentage Calculations

Example: Selling Price = $1500, Cost Price = $1200, Profit Percentage = ($1500 - $1200) / $1200 × 100 = 25%

More Discounts and Sale Prices

Example: Original Price = $200, Discount = 40%
Discount Amount = $200 × 0.4 = $80
Sale Price = $200 - $80 = $120

More Conversions

Example: Convert 7/8 to a decimal: 7 ÷ 8 = 0.875
Convert 0.875 to a percentage: 0.875 × 100 = 87.5%

Test your skills in converting between fractions, decimals, and percentages in various contexts. Practice calculating profit percentage, loss percentage, and percentage discount. Strengthen your abilities in adding, subtracting, and dividing decimal numbers for problem-solving scenarios.