20tickets on which no 1 to 20 are written throughly and a ticket is drawn at random out of them find the probability of no of drawn ticket is multiple of 3 or 7
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the favourable outcome = 3,6,9,12,15,18,7,14
so, there are 8 favourable outcome
probability=no.of favourable outcome/total no. of outcome
probability =8/20
=2/5
so, there are 8 favourable outcome
probability=no.of favourable outcome/total no. of outcome
probability =8/20
=2/5
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