Answer :

Total numbers of elementary events are: 10 x 9= 90

Being numbers are of non-replacing nature and order matters


Let E be the event of a/b as an integer


Favorable events are:


2/1, 3/1 , 4/1, 4/2, 5/1 , 6/1, 6/2 , 6/3 , 7/1 , 8/4 , 8/2 , 8/1, 9/3 , 9/1 , 10/5 , 10/2 , 10/1


Numbers of favorable outcomes are: 17/90


P (a/b is an integer) = P (E) = 17/90

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

A child has a dieRS Aggarwal - Mathematics