Question

In a class, 60% of the students are girls and the rest are boys.
There are 30 more girls than boys. If 68% of the students,
including 30 boys,pass an examination, the percentage of the
girls who do not pass is?​

Answer 1

Answer:

let total number of students in the class = 100x

Number of girls = 60% of 100x = 60x

Number of boys = 100x – 60x = 40x

Given, 60x – 40x = 30

So 20x = 30

x = 30/20

thus number of students = 100x = 100*30/20 = 150

number of boys = 40x = 40*30/20 = 60

number of girls = 150 – 60 =90

number of students who do not pass the exams = 32% of 100x = 32x = 32*30/20 = 48

number of boys failed= 60 -30 = 30

so number of girls failed = 48 – 30 = 18

required percentage = 18/90 *100 = 20%

Step-by-step explanation:

Answer 2

Answer:

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