Question

In a group of students, 70% can speak english and 65% can speak hindi. If x is the number of people who can speak both eng and french. Every one can speak atleast one of the three languages.

Answer 1

Lets consider total number of students as 100

=> Percentage of students speak hindi = 70%

=> Percentage of students speak english = 65%

=> Percentage of students speaks none = 27%

So 100 - 27 = 73% cannot speak none languages

Let x be number of students

73% = 70 - x + x + 65 - x

x = 70 + 65 - 73

x = 135 - 73

x = 72%