The following table provides data about the number of students using different modes of transport.

Mode of transport Bicycle Bus Walk Train Car

Number of students 140 100 70 40 10

Represent the above data using a pie diagram.

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Solution

First, we compute the central angle for each subject, as shown in the following table .

Sr. No. Mode of transport Number of students Measure of central angle

1 Bicycle 140 $\frac{140}{360} \times 360 ° = 140 °$

2 Bus 100 $\frac{100}{360} \times 360 ° = 100 °$

3 Walk 70 $\frac{70}{360} \times 360 ° = 70 °$

4 Train 40 $\frac{40}{360} \times 360 ° = 40 °$

5 Car 10 $\frac{10}{360} \times 360 ° = 10 °$

Total 360 360^o

Pie diagram is as follows:

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(θ)

Mode of Transport	Bicycle	Bus	Walk	Train	Car	Total
Number of Students	$140$	$100$	$70$	$40$	$10$	$360$

School bus	Private bus	Bicycle	Rickshaw	On foot
350	245	210	175	280

Various modes of transport used by 1260 students in a given school are given below :

$\begin{matrix} School bus & Private bus & Bicycle & Rickshaw & On foot 350 & 245 & 210 & 175 & 280 \end{matrix}$

Represent the above data by a pie char.

School bus	Private bus	Bicycle	Rickshaw	By foot
640	360	490	210	150

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