Definition:
A percentage is a number or ratio expressed as s fraction of 100.
Step-by-step explanation:
There are total of 50 students,in which 10 are 4 feet which is not included in this case as we need to find the percentage of students with a height greater than 4 feet,so only 20 students who are 4.5 feet tall and 20 students who are 5 feet tall is considered
Number of students greater than 4 feet ,is found as
[tex]=20+20\\ =40[/tex]
Among 50 students ,only 40 students are greater than 4 feet tall,now express in percentage as follows,
[tex]=\frac{40}{50}*100\\ =40*2\\ =80 per cent[/tex]
Therefore,the percentage of students with height greater than 4 feet is 80%.
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diyae5zr
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7Given:
Total number of students = 50
Number of students who are 4 feet tall = 10
Number of students who are 4.5 feet tall = 20
Number of students who are 5 feet tall = 20
To Find:
Percentage of students with a height greater than 4 feet?
Solution:
Number of students greater than 4 feet -
= Students 4.5 feet tall + Students 5 feet tall
20 + 20
= 40
Among 50 students, only 40 students are greater than 4 feet tall.
Thus, expressed in % -
40/50 × 100
4 × 20
= 80
Answer: The percentage of students with a height greater than 4 feet is 80%.
Author:
daviand9tf
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