Q. 30

A box contains 90

Answer :

(i) 10,11,12…90 are two digit numbers. There are 81 numbers. So,


Probability of getting a two-digit number


= 81/90 = 9/10


(ii)1, 4, 9,16,25,36,49,64,81 are perfect squares. So, Probability of getting


a perfect square number = 9/90 = 1/10


(iii) 5, 10,15….90 are divisible by 5. There are 18 outcomes. So, probability


of getting a number divisible by 5 = 18/90 = 1/5


OR


(i) Probability of getting A king of red colour.


P (King of red colour) = 2/52 = 1/26


(ii) Probability of getting A spade


P ( a spade) = 13/52 = 1/4


(iii) Probability of getting The queen of diamonds


P ( a the queen of diamonds) = 1/52


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Heights and Distances-IHeights and Distances-IHeights and Distances-I45 mins
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