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Tickets numbered 1 to 20 are mixed up...

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3?

A

`3/20`

B

`3/10`

C

`2/5`

D

`1/2`

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The correct Answer is:
B
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