Question

Thereafter 30 cards,of same size ,in the bag on which number1 to 30 are written.one card is taken out random. Find the probability that the number on the selected card is not divisible by3

Answer 1

Favourable Outcome= 20

Total no. of outcome = 30

P (E) = Fav. outcome/ Total no of outcome

= 20/30

=2/3.....Ans