Question

A picnic is being planned in a school for Class $VII.$Girls are $60\%$ of the total number of students and are$18$ in number. The picnic site is $55km$from the school and the transport company is charging at the rate of $Rs12perkm.$ The total cost of refreshments will be $Rs4280$. Find If their first stop is at a place $22km$ from the school, what percent of the total distance of $55km$ is this? What percent of the distance is left to be covered?

Answer 1

Step1- Percentage of total distance covered

Distance of first stop from school $=22km$

Total distance $=55km$

Percentage of total distance covered $=\frac{\mathbf{D}\mathbf{i}\mathbf{s}\mathbf{t}\mathbf{a}\mathbf{n}\mathbf{c}\mathbf{e}\mathbf{}\mathbf{o}\mathbf{f}\mathbf{}\mathbf{f}\mathbf{i}\mathbf{r}\mathbf{s}\mathbf{t}\mathbf{}\mathbf{s}\mathbf{t}\mathbf{o}\mathbf{p}}{\mathbf{T}\mathbf{o}\mathbf{t}\mathbf{a}\mathbf{l}\mathbf{}\mathbf{d}\mathbf{i}\mathbf{s}\mathbf{t}\mathbf{a}\mathbf{n}\mathbf{c}\mathbf{e}}\times 100$

$$\begin{gathered} =\frac{22}{55}\times 100 \\ =\frac{2}{5}\times 100 \\ =40\% \end{gathered}$$

$\therefore$ The first stop is $40\%$ of the total distance

Step 2- Percentage of distance left to be covered

Percentage of distance left to be covered $=100\%-40\%$

$=60\%$

$\therefore 60\%$ of the distance is left to be covered.