Question

Question # 38

In order to pass in an exam, a student must score a minimum of 150 which is 25% of the total marks. If he fails by 20 marks, what is his percentage?​

Answer 1

Answer:

450

Step-by-step explanation:

well First u need to assume the maximum marks as x .

so,

let maxi marks is = X.

now he fails by 30 marks so,

40% marks = (150+30)=180.

now-

X * (40/100) = 180

or, X = 180 * (100/40)  

0r, X = 450

so the answer is = 450.

Answer 2

The percentage of the student is 21.67%

Given:

25% of the given marks is 150 which is the pass mark

The student failed by 120 marks.

To Find:

We need to find the percentage of the student.

Solution:

Let us assume that the total marks are x.

Then pass marks are equal to

$\frac{25}{100} \times x = 150$

$x = 150 \times 4$

$x = 600$

The total marks are 600. As the student is failed by 20 marks, his marks would be

$= 150 - 20$

$= 130$

The percentage obtained by the student is

$= \frac{130}{600} \times 100$

$= 21.67\%$

Therefore ,the percentage obtained by the student is 21.67 %

#SPJ2