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A Box Contains 3 Blue, 2 White and 4 Red Marbles. If a Marbles. If a Marble is Drawn at Random from the Box, What is the Probability that It Will Not Be a White Marble? - Mathematics


A box contains 3 blue, 2 white and 4 red marbles. If a marbles. If a marble is drawn at random from the box, what is the probability that it will not be a white marble?


  • `1/3`

  • `4/9`

  • `7/9`

  • `2/9`

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Total possible outcomes = Total number of marbles

                                       = ( 3 + 2 + 4) = 9 

Let E be the event of not getting a white marble.

It means the marble can be either blue or red but not white.

Number of favourable outcomes =  (3 + 4) = 7 marbles

∴ P(not getting a white marble ) =`7/9`

Concept: Concept Or Properties of Probability
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RS Aggarwal Secondary School Class 10 Maths
Chapter 15 Probability
Multiple choice Questions | Q 29 | Page 708
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