Question

In a group of $50$ people, $35$ speak Hindi and $25$ speak both English and Hindi. Then how many people speak only English ? (Assuming each person speaks at least one language)

• A. $16$
• B. $15$
• C. $10$
• D. $25$

Answer 1

The correct option is B $15$

$n\left(H\right)=35=$ People who speaks Hindi
$n\left(E\right)=$ People who speaks English
$n(H\cup E)=50$ , $n(H\cap E)=25$
$n(E-H)=n(E\cup H)-n\left(H\right)=15$