Tickets numbered from 1 to 20 are mixed up together and then 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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Step-by-step explanation:
Total tickets =20
Total multiples of 3 between 1 to 20 =8
Total multiples of 7 between 1 to 20 =2
Probability of getting a multiple of 3 or 7= 8+2/20
=10/20
=1:2
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