There are two balls in an urn whose colours are not known. (Each ball can be either black or white). A white ball is put in the urn. A ball is now drawn from the bag at random. The probability that th

Question

There are two balls in an urn whose colours are not known. (Each ball can be either black or white). A white ball is put in the urn. A ball is now drawn from the bag at random. The probability that the ball drawn is white is

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Answer:

D

Solution:

The two balls in the bag can be WW or BB or WB.

All cubes are equally likely.

TestHub · Accepted Answer

The two balls in the bag can be WW or BB or WB. All cubes are equally likely.

Mathematics - Permutation & Combination Question with Solution | TestHub

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