The following bar graph represents the heights (in cm) of 50 students of Class XI of a particular school. Study the graph and answer the following questions:

What percentage of the total number of students have their heights more than 149 cm?"

Given:

The heights (in cm) of 50 students of Class XI of a particular school.

To do:

We have to find the percentage of the total number of students who have their heights more than 149 cm.

Solution:

Number of students who have their height in 150-154 group $=17$

Number of students who have their height in 155-159 group $=9$

Number of students who have their height in 160-164 group $=5$

Therefore,

The number of students who have their height more than 149 cm $=17+9+5$

$=31$

The percentage of the total number of students who have their heights more than 149 cm $=\frac{31}{50}\times100 \%$

$=62 \%$

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Updated on: 10-Oct-2022

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