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A dice is thrown three times and the sum...

A dice is thrown three times and the sum of the thrown numbers in 15. Find the probability for which number 4 appears in first throw.

A

`(1)/(5)`

B

`(1)/(4)`

C

`(1)/(6)`

D

`(2)/(5)`

Text Solution

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The correct Answer is:
(a)
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ARIHANT MATHS-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,....10...

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

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