Half of 1 percent written as a decimal is 0.05. (a) True (b) False

By BYJU'S Exam Prep

Updated on: September 25th, 2023

The statement “Half of 1 percent written as a decimal is 0.05” is false.

Half of 1 percent = ½ (1%)

= ½ x 1/100

= 1/200

= 0.005

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the word percent means. The letter “%” stands for it. There is no dimension to percentages. As a result, it is known as a dimensionless number.

Percentage Formula

We must divide the value by the total value to find the percentage, and then multiply the resulting number by 100.

Percentage formula = (Value/Total value) × 100

How to find the percentage of a number?

We must use a different formula, such as P% of Number = X, where X represents the required percentage, to determine the percentage of a number.

If the % symbol is removed, the formulas above must be expressed as;

P/100 * Number = X

A percentage increase or decrease is calculated by subtracting the original number from the new number, dividing that result by the original number, and multiplying the result by 100.

% increase = [(New number – Original number)/Original number] x 100


increase in number = New number – original number

A percentage increase is calculated by subtracting a new number from the original number, dividing that new number by the original number, and multiplying that result by 100.

% decrease = [(Original number – New number)/Original number] x 100

Where decrease in number = Original number – New number

In other words, there is a percentage decrease if the response is negative.


Half of 1 percent written as a decimal is 0.05. (a) True (b) False

It is untrue to say that 0.5%, or one-half of one percent, is written as a decimal. The standard form of representing integer and non-integer numbers is decimals.

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