Q11 of 54 Page 308

A box contains 4 Green, 5 Blue and 3 Red balls. A ball is drawn at random. Find the probability that the selected ball is (i) Red in colour (ii) not Green in colour.

No of green balls = 4


No of blue balls = 5


No of red balls = 3


Total no of balls = 4+5+3 = 12


(i) no of probable outcomes that the ball is red in colour = 3


⇒ probability



(ii) no of green balls = 4


⇒ probability




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