HOW MANY LANGUAGES DO YOU KNOW?

Level 2

In a committee 50 people speak Hindi, 20 people speak English and 10 people speak both Hindi and English. how many speak at least one of these two languages?


The answer is 60.

Ashutosh Malviya by ashutosh malviya , 26, India

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1 solution

Pranjal Jain
Dec 11, 2014

A + B = ( A ∪ B ) + ( A ∩ B ) A+B=(A\cup B)+(A\cap B)

A=People speaking Hindi

B=People speaking English

50 + 20 = x + 10 50+20=x+10 ⇒ x = 60 \Rightarrow x=\boxed{60}

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