Question

In an examination ,90% of the candidates passed and 80 candidates failed. How many candidates had appeared in the examination?

Answer 1

Let the total number of candidates be x
10%of student failed

10/100×x=80
x=80×100/10
x=800
So 800 candidates appeared for the exam
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Answer 2

There are 800 students in the examination.

Step-by-step explanation:

Since we have given that

Percentage of candidates passed = 90%

Number of candidates failed = 80

Let the number of candidates appeared in examination be 'x'.

Percentage of candidates failed = 100% - 90% = 10%

According to question, it becomes,

$\dfrac{10}{100}\times x=80\\\\0.10\times x=80\\\\x=\dfrac{80}{0.10}\\\\x=800$

Hence, there are 800 students in the examination.

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https://brainly.in/question/5845339 Answered by Brainlyhomework

Topic : Percentage.