Q. 154.7( 3 Votes )
A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the probability that ball drawn is white?
Answer :
Sample space, n(S) = 12
Number of events of getting white ball, n(E) = 5
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PREVIOUSA bag contains 6 red, 8 black and 4 white balls. A ball is drawn at random. What is the probability that ball drawn is not black?NEXTTickets numbered from 1 to 20 are mixed up and a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 7?
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RELATED QUESTIONS :
Which of the following amongst the given options cannot be the probability of an event:
(i) 1.01 (ii) 67%
(iii) -0.5 (iv) 
(v) 0.3
KC Sinha - Mathematics