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What is the probability that the ticket has a number which is a multiple of 3 or 5?

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The tickets numbered from 99 to 116 are mixed up and then a ticket is drawn at random.
What is the probability that the ticket has a number which is a multiple of 3 or 5?

posted Dec 9, 2019 by Anuradha Tabyal

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2 Answers

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Total of 18 tickets. Of them 6 are a multiple of 3 and 4 are a multiple of 5.
But 105 is then counted double.
So 9 out of 18 tickets are multiple of 3 or 5 = 50%

answer Dec 9, 2019 by Jcm
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50%


99-116---> total 18 tickets
multiples of 3 or 5-- 99, 100, 102, 105, 108, 110, 111, 114, 115--> 9
probability--> 9/18=50%

answer Dec 9, 2019 by Hanifa Mammadov



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