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turn contains 6 white and 4 black balls....

turn contains 6 white and 4 black balls. A fair dice is rolled and that number of balls are chosen from the urn. Find the probability that the balls selected are white.

A

`1//5`

B

`1//6`

C

`1//7`

D

`1//8`

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-PROBABILITY -Section II - Assertion Reason Type
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  2. .Let X be a set containing n elements. If two subsets A and B of X are...

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  3. Let A and B be two events such that P(A cup B)=P(A cap B). Then, St...

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  4. Let A, B and C be three events associated to a random experiment. St...

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  5. An urn contains m white and n black balls. A ball is drawn at random a...

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  6. Four tickets marked 00, 01, 10, 11 respectively are placed in a bag. A...

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  7. Two persons each makes a single throw with a pair of dice. Find the pr...

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  8. Aa n dB toss a fair coin each simultaneously 50 times. The probability...

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  9. A bag contains (2n+1) coins. It is known that n of these coins have a ...

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  10. The number of seven digit numbers divisible by 9 formed with the digit...

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  11. Three dice are thrown simultaneously. What is the probability of ge...

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  12. Probability that a student will succeed in I.I.T. Entrance test is 0.2...

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  13. A speaks the truth 4 out of 5 times. He throws a die and reports that ...

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  14. In an entrance test, there are multiple choice questions. There are...

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  15. A letter is known to have come either from LONDON or CLIFTON. On the ...

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  16. turn contains 6 white and 4 black balls. A fair dice is rolled and tha...

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  17. An urn contains five balls. Two balls are frawn and are found to be wh...

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  18. about to only mathematics

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  19. A biased die is tossed and the respective probabilities for various fa...

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  20. In a bag there are three tickets numbered 1, 2, 3. A ticket is drawn a...

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