Question

Which of the following ratio form a proportion:

$2:5$ and $8:11$.

Answer 1

The ratios $a:b$ and $c:d$ are said to be in proportion if $a:b$ and $c:d$ are equivalent ratios i.e., $a:b=c:d$

Now, the given ratios are $2:5$ and $8:11$which are already in their lowest form.

Here, $2:5$$\ne$ $8:11$.

Hence, the given ratios are not in proportion.