Q. 75.0( 2 Votes )

A bag contains 3

Answer :

As there are 3 +4+5 = 12 balls.

So, 2 balls out of 12 can be drawn in 12C2 ways = 66

Let E denote the event that balls drawn are of different colours

Either the balls will be red-white or white-blue or red-blue.

P(E) =


P(E) = 47/66

As our answer matches only with option (a)

Option (a) is the only correct choice.

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
view all courses

A natural number RD Sharma - Mathematics

In a single throwRD Sharma - Mathematics

One of the two evRD Sharma - Mathematics

A card is drawn aRD Sharma - Mathematics

One of the two evRD Sharma - Mathematics

The probability tRD Sharma - Mathematics

If the probabilitRD Sharma - Mathematics

Without repetitioRD Sharma - Mathematics

6 boys and 6 girlRD Sharma - Mathematics