Answer :

given: bag which contains 8 red and 5 white balls

We know,

total number of ways of drawing three balls at random is ^{13}C_{3.}

therefore n(S)=286

(i) let E be the event of getting all white balls

E= {(W) (W) (W)}

n(E)= ^{5}C_{3}

=10

(ii) let E be the event of getting all red balls

E= {(R) (R) (R)}

n(E)= ^{8}C_{3}

=56

(iii) let E be the event of getting one red and two white balls

n(E)= ^{8}C_{1}× ^{5}C_{2}

=80

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 Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation

RELATED QUESTIONS :

Four candidates AMathematics - Exemplar

If A and B are muMathematics - Exemplar

State whethMathematics - Exemplar

If P (A ∪</Mathematics - Exemplar

State whethMathematics - Exemplar

If A and B are muMathematics - Exemplar

The probability tRS Aggarwal - Mathematics

In a town of 6000RS Aggarwal - Mathematics