Question

two digit numberis formed with digit2,3,5,7,9 without repitition find the probability of getting an odd number​

Answer 1

Step-by-step explanation:

{ 22,23,25,27,29,32,33,35,37,39,52,53 ,57,59,72,73,75,79,92,93,95,97}

n (s)= 20

Event A : The number is odd

A = { 23,25,27,29,35,37,39,53,57,59,73,75,79,93,97}

n (A)= 16

n(A)= n(A)/ n(S)

16/20

4/5

Hence , the probability that the number is old is

4/5

I hope it will help you