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Three squares of a chess board are chose...

Three squares of a chess board are chosen at random, the probability that two are of one colour and one of another is

A

`(16)/(21)`

B

`(8)/(21)`

C

`(8)/(64xx63xx62)`

D

`(7)/(21)`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-PROBABILITY-Exercise-I
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  6. Four numbers are chosen at random from (1,2,3,…..40) . The probability...

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  7. Two boys are asked to select each one number from 1 to 100, the probab...

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  8. Three numbers are chosen at random from the first 20 natural numbers. ...

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  9. From first twenty natural numbers, 2 numbers are selected at random, t...

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  12. In the above problem the probability of selecting a determinant having...

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  16. A point is selected at random from the interior of a circle. The proba...

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  17. There are two circles in xy-plane whose equations are x^(2)+y^(2)-2y=0...

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  18. If A and B are two events such that P(A uu B)=0.65, P(A nnB)=0.15 then...

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