Question

in an examination 45% passed in science only,25% passed in english only and 5% students failed in both subjects. If 200 students passed in english then dind the total number of students by using venn diagram

Answer 1

Answer:

Step-by-step explanation :total number of students = y

(25/100) x y = 200

25 x y = 200 x 100

25y = 20000

y = 20000/25

y = 800

total number of students = 800

Answer 2

Given:

In an examination,

passed in science = 45%

passed in English = 25%

failed in both subjects = 5%

200 students passed in English.

To Find:

The total number of students.

Solution:

as given information,

25% passed in English which is equal to 200.

let total no students be x

so, 25x/100 = 200

   25x = 20000

   x = 20000/25

   x = 800

Hence, the total no of students are 800.