20 tickets on which number 1 to 20 are written are mixed throughly and then a ticket is drawn at random out of them find the probability that the number on the ticket is a multiple of 3 or 7
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total no. of tickets=20
taking a no. which is a multiple of 3 or 7= 9
probability of getting a no. which is a multiple of 3 or 7= 9/20
taking a no. which is a multiple of 3 or 7= 9
probability of getting a no. which is a multiple of 3 or 7= 9/20
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