Question

What is a ratio?

Answer 1

Ratio.

A ratio is a comparison between two or more quantities of the same units that indicate ‘how many times' a quantity is of another quantity. The ratio between any two quantities $a$ and $b$ is represented as $a:b$.

For example, if there are $2$ red balls and $5$ black balls in a box then their ratio is $2:5$.

Thus, a ratio indicated the relative sizes of two or more quantities of the same unit.