Sarthaks Test
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A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be 

(i) red? (ii) white? (iii) not green?

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Total number of marbles = 5 + 8 + 4

= 17

(i)Number of red marbles = 5

(iii)Number of green marbles = 4

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