A bag contains 4 red and 6 black balls.

Question:

A bag contains 4 red and 6 black balls. A ball is drawn at random from the bag, its colour is observed and this ball along with two additional balls of the same colour are returned to the bag. If now a ball is drawn at random from the bag, then the probability that this drawn ball is red, is:

  1. $\frac{2}{5}$

  2. $\frac{1}{5}$

  3. $\frac{3}{4}$

  4. $\frac{3}{10}$


Correct Option: 1

Solution:

 

Leave a comment

Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now