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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)/(1260)`

B

`(1)/(7560)`

C

`(1)/(126)`

D

none of these

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A
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OBJECTIVE RD SHARMA ENGLISH-PROBABILITY -Section I - Mcqs
  1. about to only mathematics

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  2. A bag contains four tickets marked with numbers 112,121,211, and 222. ...

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

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  4. A student appears for tests I, II and III. The student is considered s...

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  5. A cricket club has 15 members, of them of whom only 5 can bowl. If the...

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  6. If (1 + 3p)/(3), (1 - p)/(4) and (1 - 2p)/(2) are the probabilities of...

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  7. An unbiased die with faced marked 1, 2, 3, 4, 5, and 6 is rolled four ...

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  8. Three numbers are chosen from 1 to 30. The probability that they are n...

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  9. The probability that an event A happens in one trial of an experiment,...

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  10. If two A and B such that P(A) gt 0 and P(B) ne 1, then P(barA//barB) ...

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  11. A speks truth in 60% cases and B speaks truth in 70% cases. The probab...

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  12. Let X be a set containing n elements. Two subsets A and B of X are cho...

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  13. about to only mathematics

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  14. If P(AnnB)=1/2,P( A nn B )=1/3, P(A)=p , P(B)=2p , then find the v...

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  15. If P(A cup B)=3//4 " and " P(overline(A))=2//3, " then " P(overline(A)...

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  16. Find the probability that in a random arrangement of the letters of th...

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  17. A letter is taken out at random from 'ASSISTANT and another is taken o...

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  18. Out of 40 consecutive integers, two are chosen at random, the probabil...

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  19. Three integers are chosen at random from the first 20 integers. The ...

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  20. three identical dice are rolled . Find the probability that the same n...

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