A tution class sent 120 candidates for examination. The result was 80%.How many candidates should be detained to get 96%result?
Answer (1)
21st Jun, 2020
Hello there,
Let's solve the problem:
Out of 120 students, 80% passed.
80% means 4/5.
Therefore, 4/5*120 students passed, which means 96 students passed.
Let N be the no.of people who are detained.
Then, the no.of students who can give the test now is 120-N.
The number of people who had failed= (120-96)-N, which is, 24-N.
And, as said before, 96 people had passed.
According to the problem,
96% = 96*100% / (120-N)
So, 120-N = 100
N= 20
Answer: 20 students should be detained.
Hope this answer helps you.
Good luck!!
Let's solve the problem:
Out of 120 students, 80% passed.
80% means 4/5.
Therefore, 4/5*120 students passed, which means 96 students passed.
Let N be the no.of people who are detained.
Then, the no.of students who can give the test now is 120-N.
The number of people who had failed= (120-96)-N, which is, 24-N.
And, as said before, 96 people had passed.
According to the problem,
96% = 96*100% / (120-N)
So, 120-N = 100
N= 20
Answer: 20 students should be detained.
Hope this answer helps you.
Good luck!!
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