Correct Answer - Option 4 : 70%

**Given:**

Students who can speak English = 72%

Students who can speak Hindi = 68%

Students who can speak none of the languages = 30%

**Calculation:**

Number of students who can speak none of the language = 30%

Number of students who can speak atleast one language = 100 - 30

⇒ 70%

Number of students who can speak both = (72 + 68 - 70)%

⇒ 70%

**∴ The number of students who can speak both languages is 70%.**