tickets numbered from 1 to 20 are mixed and kept in a bag what is the probability of getting a number divisible by 5 at a random draw
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Since, total tickets = 20
Multiples of 3 or 7 from 1 to 20 are:
3,6,7,9,12,14,15,18
∴ favorable outcomes=8
∴ required probability =
20
8
=
5
2
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