Question

Determine if the following ratio from a proportion. Also write the middle term and extreme term where the ratio from a proportion.
$25cm:1m$ and $Rs.40:Rs.160$.

Answer 1

$\frac{25cm}{1m}=\frac{25cm}{100cm}=\frac{1}{4}$

$\frac{Rs.40}{Rs.160}=\frac{1}{4}$

$\Rightarrow$ These form a proportion.

Middle terms $=1m,$ Rs. $40$

Extreme terms $=25cm$, Rs. $160$.