Question

In a class of 12 students, 5 are boys and the
rest are girls. Find the probability that a
students selected will be a girl
9. A card is drawn from a pack
is the probability of getting
(i) Jack
(ii) the ace
(iii) a queen
(iv) a heart​

Answer 1

(1) Total number of possible outcomes = 12+5 = 17

Number of favourable outcomes = 12

Probability = 12/17

(2) Total number of cards in a pack = 52

So, total number of possible outcomes = 52

(i) Number of favourable outcomes = 4

Probability = 4/52 = 1/13

(ii) Number of favourable outcomes = 4

Probability = 4/52 = 1/13

(iii) Number of favourable outcomes = 4

Probability = 4/52 = 1/13

(iv) Number of favourable outcomes = 13

Probability = 13/52 = 1/4

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