Question

30. In a class 65% students passed in maths, 50% passed in English.
10% failed in both. If 40 students passed in both the subjects,
What is the total number students.​

Answer 1

Answer:

The total number of students in the class is 160.

Step-by-step explanation:

Percentage of students who passed in Maths= 65℅

Percentage of students who passed in English= 50℅

Percentage of students who failed in both= 10℅

Now, adding all we get = 125℅

However, the total is always 100℅ so the extra 25℅ represents the percentage of students who passed in both the subjects.

Therefore it can be said that:

25℅ is equivalent to 40 students

So, 100℅ ( total) is equivalent to = (40/25)*100 = 160 students.