Sainik School Entrance Exam 2019 Solved Paper

Question : 30 of 150

Marks: +1, -0

From a pack of 52 playing cards, one card is drawn at random. The probability of the drawn card being a black ten or a king is

Solution:

(b) Number of black ten in the playing card

=2

Number of king in the playing card

=4

Total card

=52

Required probability

={2}/{52}+{4}/{52}

={1}/{26}+{2}/{26}

={1+2}/{26}= {3}/{26}.

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