Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

CBSE - XII Science - Mathematics - Probability

in the earlier question that u answered in the question it is mentioned that ball is drawn without replacement

Asked by anjaly 22nd February 2013, 10:15 AM
Answered by Expert


Yups. The balls were drawn without replacement and that is why we could use the "Combinations" formula. If the balls would have been drawn with replacement, then we couldn't have used the same and the answer that we would have got would be really different from the one now. 
So, the answer that I wrote was taking into account that the balls are drawn without replacement. 
Answered by Expert 22nd February 2013, 5:39 PM

Rate this answer

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Report an issue
Your answer has been posted successfully!