Q15 of 98 Page 705

There are 20 tickets numbered as 1, 2, 3, ...., 20 respectively. One ticket is drawn at random. What is the probability that the number on the ticket drawn is a multiple of 5?

Total numbers of elementary events are: 20


Let E be the event of getting a multiple of 5


Favourable numbers are: 5, 10, 15, 20


Number of favourable events are= 4


P (E) = 4/20 = 1/5

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