Question

In an examination, there were 320 boys and 180 girls. 60% boys and 80% passed. Find the percentage of failure students

Answer 1

30% is the percentage of failure.

Answer 2

Answer:

Students percentage of failed students 32.8%.

Step-by-step explanation:

Given : In an examination, there were 320 boys and 180 girls. 60% boys and 80% passed.

To find : The percentage of failure students?

Solution :

Number of boys = 320

Number of girls = 180

Total number of students are 320+180=500

Number of boys failed = 100-60=40

Number of failure students is

$B=\frac{320\times 40}{100}$

$B=128$

Therefore, 128 boys failed out of 320.

Number of girls failed = 100-80=20

Number of failure students is

$B=\frac{180\times 20}{100}$

$B=36$

Therefore, 36 girls failed out of 180.

Total number of boys + girls failed = 128 + 36 = 164

Students percentage of failed students $\frac{164\times100}{500}= 32.8 \%$