A bag contains 10 balls. 2 red, 3 blue and 5 black. Three are drawn at random. The probability that the three balls are of different colours is

\frac{13}{120}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{11}{120}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{79}{120}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{1}{4}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $\frac{1}{4}$
Probability $= \frac{^{2} C_{1} .^{3} C_{1} .^{5} C_{1}}{^{10} C_{3}} = \frac{1}{4}$

Suggest Corrections

Similar questions

A bag contains 8 red, 3 white and 9 blue balls. If three balls are drawn at random, determine the probability that

(i) all the three balls are blue balls

(ii) all the balls are of different colours.

3

4

5

A bag contains 3 white, 5 red and 7 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:

Join BYJU'S Learning Program