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Five horses are in a race. Mr. A selects...

Five horses are in a race. Mr. A selects two of the horses at random and bets on them. The probability that Mr. A selected the winning horse is

A

`(2)/(5)`

B

`(4)/(5)`

C

`(3)/(5)`

D

`(1)/(5)`

Text Solution

Verified by Experts

The correct Answer is:
A
We have,
Required probability =- Probability that none of the selected horse is a winning horse
`=1-((4)/(5)xx(3)/(4))=1-(3)/(5)=(2)/(5)`
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OBJECTIVE RD SHARMA ENGLISH-PROBABILITY -Section I - Solved Mcqs
  1. The probability of happening of an event A is 0.5 and that of B is 0.3...

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  2. If P(B)=(3)/(4), P(AcapBoverline(C))=(1)/(3) and P(overline(A)capoverl...

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  3. Five horses are in a race. Mr. A selects two of the horses at random ...

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  4. The probability that A speaks truth is (4)/(5), while this probability...

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  5. The probability that in a year of 22nd century chosen at random, There...

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  6. For two events A and B, if P(A)=P((A)/(B))=(1)/(4) and P((B)/(A))=(1)/...

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  7. A fair die is rolled. The probability that the first time 1 occurs at ...

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  8. There are n urns each containing (n+1) balls such that the i^(th) urn ...

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  9. In Example 94, if P(U(i))=C, where C is a constant, then P(U(n)//W) is...

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  10. In Example 94, if n is even and E denotes the event of choosing even n...

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  11. Indian and four American men and their wives are to be seated randomly...

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  12. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

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  13. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

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  14. In Example 99, the probability that X ge 3 equals

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  15. In Example 99, the conditional probability that X ge 6 " given " X gt ...

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  16. If A and B are mutually exclusive events with P(B) ne 1, " then " P(A/...

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  17. Let E^c denote the complement of an event E. Let E,F and G be pairwise...

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  18. A single which can can be green or red with probability 2/3 and 1/5 re...

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  19. An unbiased die is rolled untill two consecutive trials result in even...

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  20. An urn contains nine balls of which three are red, four are blue and ...

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