Q14 of 66 Page 15

One ticket is drawn at random from a big containing tickets numbered 1 to 40. The probability that the selected ticket has a number, which is a multiple of 7, is[CBSE 2013]

Total numbers of elementary events are: 40


Let E be the event of getting multiple of 7


Favourable outcomes are: 7, 14, 21, 28, 35


Number of favourable outcome = 5


P(E) = 5/40 = 1/8


1/8

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