Question

2 points
12) if 50% girls passed in
Marathi 60% girls passed in
science and 40% girls passed
in Marathi and science find the
percentage of girls who
passed either Marathi or
science. *
O 11%
70%
80%
85%​

Answer 1

Solution: 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%

Answer 2

70% is the right answer........