Question

Ticket number 1 to 20 are mixed up and then a ticket is drawn at random what is the probablility that ticket is drawn bears which is multipe of 3

Answer 1

3/10

s={1,2,3,4,5,6,7,8,9....20}

there are 6 multiples of 3, and the sample space is 20

therefor the p(getting multiples of three)=6/20

=3/10