Question

in a class 80% have passed english,70% passed hindi 10% did not passed either. if 144 students passed both. what is the total strength of the class.

Answer 1

the total strength of the class is 96

Answer 2

Answer:240

Step-by-step explanation:

Students passed in English = 80%

Students passed in Hindi = 70%

Students didn't passed in any subjects = 10%

Students passed in Both subjects = 144

ASSUMPTION :

Let the percentage of students who passed both the subjects be m% and let total number of students in the class = p

CALCULATION :

Then, we have

⇒ 80% + 70% + 10% - m% = 100%

⇒ m% + 100% = 160%

⇒ m% = 160% - 100%

⇒ m = 60

Hence we have 60% people who passed in both the subjects = 144

⇒ 60% of p = 144

⇒ (60/100) × p = 144

⇒ P = 144 × 100/60

⇒ P = 240

So, Total number of students = 240