Question

In an examination,77%of the students passed in science and 66% passed in Hindi,13% students failed in the both subject and 280 passed in both the subject.Find the total number of students.

Answer 1

Answer:

Step-by-step explanation:

Total no of student passed in science = 100-77=23

Total no of student passed in hindi = 66

Total no of student fail in both subject= 13

Total no of passed students = (23+66)-13 = 76 (here we deduct 13 because 13 student fail in both subject)

Total no of students pass in both = 100-76=24

now 24%= 280

OR

x × 24 /100 = 280

⇒ x = 2800/24

⇒ x = 116.666