A bag contains 10 red balls, 15 green balls and 25 blue balls. A ball is drawn at random from the bag. Find the probability that the ball drawn is not in red colour Full Marks : 1 (a) 0.5
(b) 0.6
(c) 0.7
(d) 0.8
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Answer:
(d) 0.8
Step-by-step explanation:
Total No. of balls in the bag = 50
No. of red balls = 10
No. of non-red balls = 50-10
=40
P(E)= No. of favourable outcomes / Total No. of outcomes
Probability of getting a non-red ball
= No. of non-red balls / Total No. of balls
=40/50
=4/5
=0.8
Hence, (d)0.8 is the correct option.
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