Question

Among $9$ passengers, $5$ can speak Kannada, $2$ can speak both Kannada and English. What is the number of passengers who can speak only English?

Answer 1

The total number of passengers is $9$
The number of passengers who speaks Kannada is $5$
The number of passengers who can speak both Kannada and English is $2$
$3$ passengers can speak only Kannada.
Let the number of passengers who can speak only English be $x$
∴ $x=$ Total number of passengers $-$ (number of passengers who speak only Kannada $+$ number of passengers who can speak both Kannada and English)

$\therefore x=9–(3+2)=4$

Hence, $4$ passengers can speak only English.