Among 9 passengers, 5 can speak Kannada, 2 can speak both Kannada and English. The number of passengers who can speak only English is

Total number of passengers = 9
The number of passengers who speaks Kannada = 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).
∴ x = 9 – (3 + 2) = 4

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