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3 years ago

14

A bag contains 10 marbles:

1 answer:

Len [333]3 years ago

6 0

Total number of marble = 10
3green
2red
5 blue
Probability that the first marble is red = 2/10

Probability that the second is blue = 5/9(a reduction in the total number of marbles, because after the first marble was picked it wasn't replaced)

Probability of 1st and 2nd being red and blue respectively = 2/10 × 5/9
=1/9....

Hope this helped...?

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<h2>Algebraic expressions</h2>

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