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A box contains 2 balck, 4 white, and 3 balls. One ball is drawn at random from the box and kept aside to first. This process is repeated till all the balls are drawn from the box. The probability that the balls drwn are in the sequences of 2 black, 4 white and 3 red is

A

`(1)/(126)`

B

`(1)/(630)`

C

`(1)/(1260)`

D

`(1)/(2520)`

Text Solution

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The correct Answer is:
(c)
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ARIHANT MATHS ENGLISH-PROBABILITY-Exercise For Session 1
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  5. An unbiased die with faced marked 1, 2, 3, 4, 5, and 6 is rolled four ...

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  6. Three numbers are chosen at random without replacement from {1, 2, 3, ...

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  8. Two numbers are selected randomly from the set S={1,2,3,4,5,6} without...

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  12. A box contains 2 balck, 4 white, and 3 balls. One ball is drawn at ran...

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  13. If three distinct number are chosen randomly from the first 100 natura...

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  14. There are 2 vans each having numbered seats, 3 in the front and 4 at t...

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  15. A and B stand in a ring with 10 other persons . If the arrangement of ...

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  16. The first twelve letters of the alphabet are written down at random ....

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  17. If 6 boys and 6 grils sit in a row at random, then the probability tha...

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  18. If from each of the three boxes containing 3 whiter and 1 black, 2 ...

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  19. about to only mathematics

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