Question

The value of \[0.025\] when expressed as percentage is
A). \[250\% \]
B). \[25\% \]
C). \[4\% \]
D). \[2.5\% \]

Answer 1

Hint: Here, in the given question, we are asked to convert a number of decimal forms into percentage form. To solve this question, we will use a fact that if we multiply a decimal by \[100\], we get the decimal value in percentage form.

Complete step-by-step solution:
Number given in decimal form=\[0.025\]
We know that, to convert any decimal number into percentage form we simply multiply that number by \[100\].
It means \[0.025\] in percentage form would be expressed as,
\[0.025 \times 100\% \]
\[ = 2.5\% \]
Hence, \[0.025\] when expressed as a percentage is \[2.5\% \].
Hence the correct option is D. \[2.5\% \]

Note: We know that if we multiply any number by \[1\], the number doesn’t change. When we convert a decimal number into percentage form by multiplying by \[100\], it is quite similar to multiplying a number by \[1\] because actually we are multiplying it by \[\dfrac{{100}}{{100}}\] because, we know \[1\% = \dfrac{1}{{100}}\].