Question

Check whether the following is in continued proportion or not.$12,20\mathrm{and}25.$

Answer 1

Check the numbers are in continued proportion or not

In continued proportion, the ratio of first to the second and second to the third are equal.

Let, $12:20::20:25$

$\Rightarrow \frac{12}{20}=\frac{20}{25}$

$\Rightarrow \frac{3}{5}\ne \frac{4}{5}$

Hence$12,20\mathrm{and}25$ are not in continued proportion.