Question

A disaster relief team consists of engineers and doctors in the ratio of $2:5$.
(i) If there are $18$ engineers, find the number of doctors.
(ii) If there are $65$ doctors, find the number of engineers.

Answer 1

Given:

Ratio of number of engineers and doctors in the team $=2:5$

(i) If there are $18$ engineers,

Number of doctors $=\frac{18\times 5}{2}=45$ doctors

(ii) If there are $65$ doctors,

Number of doctors $=\frac{65\times 2}{5}=26$ engineers