Question

In an exam 10% students failed and 90 students passed. Determine the number of students who failed.​

Answer 1

10 students failed the exam

Answer 2

Answer:

Hence total number of students failed will be 10

Step-by-step explanation:

In context to questions asked

We have to determine the value of number of total number of students failed

As per questions

Percentage of students failed = 10%

Number of students passed = 90

As we know that

for determining the percentage of students passed we will subtract the percentage of students failed from total percentage i.e. 100%

So, percentage of students passed will be

$100 - 10 = 90 \: percent$

So we can write it as

$\frac{90}{100} \times total \: student = 90 \\ total \: student = \frac{100 \times 90}{90} \\ = > total \: student = 100$

Hence number of students failed will be

$\frac{10}{100} \times 100 = 10$