Question

what is probability of of two digit odd number formed from digits 0,2,3,5,7 without reputation ? also find the probability of event (a)the number so formed is is an even number , (b) the two digit number so formed is multiple of 3

Answer 1

probability of two digit odd no-23,35,25,57,73,75,53
(a) 32,72,52,02,20,2,0
(b) 75,30,57,