Question

Find the ratio of the price of coffee to that of tea if coffee costs $Rs.120$ per $100g$ and tea costs $Rs.160$ per kg.

Answer 1

Cost of $100g$ of coffee = $Rs.120$

Therefore, cost of $1000g\left(1kg\right)$ coffee = $120\times 10=Rs.1200$

Cost of $1000g\left(1kg\right)$ tea = $Rs.160$

Therefore, ratio of the price of coffee to that of tea is,

$\Rightarrow \frac{1200}{160}=\frac{120}{16}=\frac{30}{4}=\frac{15}{2}=15:2$

Hence, ratio of the price of coffee to that of tea is $15:2$.