Test: Percentages - Year 5 MCQ

The term "one whole" refers to a complete unit or total amount. To express this in percentage terms:

• One whole is equivalent to 100% of that unit.
• This means that if you have the entire amount, it represents the full percentage.

Therefore, when asked what percentage one whole is, the answer is clearly 100%.

To find out what percentage 1/10 is, follow these steps:

• Convert the fraction to a decimal: 1 divided by 10 equals 0.1.
• To convert a decimal to a percentage, multiply by 100: 0.1 × 100 = 10.

Therefore, 1/10 is equal to 10%.

To find 75% of 200, you can follow these steps:

• First, convert the percentage to a fraction: 75% is the same as 75 out of 100, or 75/100.
• Next, multiply this fraction by 200: 75/100 × 200 = 150.

So, 75% of 200 is 150.

To find the fraction equivalent to 1%, we can follow these steps:

• 1% means 1 out of 100.
• This can be expressed as the fraction 1/100.
• Among the given options, 1/100 matches option D.

Therefore, the fraction equivalent to 1% is 1/100.

To find out what percentage 0.2 represents, you can follow these steps:

• Understand that a percentage is a way of expressing a number as a fraction of 100.
• Convert 0.2 into a percentage by multiplying it by 100.
• So, 0.2 x 100 = 20.
• This means that 0.2 is equal to 20%.

To convert a percentage into a decimal, you divide the percentage by 100. In this case:

• Start with the percentage: 25%.
• Divide by 100: 25 ÷ 100.
• This equals 0.25.

Therefore, the decimal equivalent of 25% is 0.25.

To find out which percentage corresponds to 0.75, you can follow these steps:

• Understand the conversion: Percentages are a way of expressing a number as a fraction of 100.
• Calculate the percentage: Multiply 0.75 by 100 to convert it to a percentage.
• The calculation is: 0.75 × 100 = 75.
• This means that 0.75 is equal to 75%.

Thus, the correct answer is 75%.

• Start with 100% of the apples.
• Subtract the rotten percentage: 100% - 30% = 70%.

Therefore, 70% of the apples are not rotten.

The car loses 15% each year, meaning it keeps 85% each year.
After 3 years: 100 × 0.85³ = 61.41
So approximately 61% of its value remains.
Closest option: 65%.

If 60% are girls, then 40% are boys.
Calculate 40% of 500: (40/100) × 500 = 0.4 × 500 = 200 boys.