Question

A bag contains 19, coloured balls. 8 are green, 7 are white and 4 are red. A ball is chosen without looking into the bag. Find the probability that the ball chosen is

i ) red ii) green or red iii) red or white iv) white v) green or red or white

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Answer 1

TOTAL COLOURS BALL = 19

GREEN BALLS = 8

WHITE = 7

RED =4

1) P(E) = NO . OF OUTCOMES

TOTAL NO. OF OUTCOMES

P(E) = 4

19

2) P(E) =12

19

3) 11/19

4 ) 7

19

5) 19/19