Home
Class 12
MATHS
An urn contains 5 red and 5 black balls....

An urn contains 5 red and 5 black balls. A ball is draw at random, its colour is noted and is returned to the urn. Moreover, 2 additional balls of the colour drawn are put in the urn and then a ball is drawn at random. What is the probability that the second ball is red?

Text Solution

Verified by Experts

The correct Answer is:
`(1)/(2)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NEW JOYTHI PUBLICATION|Exercise SOLUTIONS TO NCERT TEXT BOOK EXERCISE 13.4|17 Videos

  • PROBABILITY

    NEW JOYTHI PUBLICATION|Exercise SOLUTIONS TO NCERT TEXT BOOK EXERCISE 13.5|15 Videos

  • PROBABILITY

    NEW JOYTHI PUBLICATION|Exercise SOLUTIONS TO NCERT TEXT BOOK EXERCISE 13.2|18 Videos

  • PRINCIPLES OF MATHEMATICAL INDUCTION

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|4 Videos

  • RELATIONS AND FUNCTIONS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|33 Videos

Similar Questions

Explore conceptually related problems

An urn contains 5 red and 5 black balls. A ball is drawn at random, its colour is noted and is returned to the urn. Moreover, 2 additional balls of the colour drawn are put in the urn and then a ball is drawn at random. The probability that the second ball drawn is red will be

An urn contains 5 red and 5 black balls. A balls is drawn at random , its colour is noted and is returned to the urn. Moreover , 2 additional balls of the colour drawn are put in the urn and then a ball is drawn at random . Then probability that the second ball drawn is red will be .......

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

An urn contains m white and n black balls. A ball is drawn at random and is put back into the urn along with k balls of the same colour as that of the ball drawn. a ball is again drawn at random. Show that the probability of drawing a white ball now does not depend on k.

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white .

A bag contains 2 red balls and 4 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is red?