Suppose a jar contains a total of 72 marbles. There are 17 red marbles, 23 blue marbles and 32 black marbles. If you reach in the jar and pull out 2 marbles at random at the same time

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Suppose a jar contains a total of 72 marbles. There are 17 red marbles, 23 blue marbles and 32 black marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that neither is red.

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It is given that,

A jar contains a total of 72 marbles out of which there are 17 red marbles, 23 blue marbles and 32 black marbles.

It means number of non-red marbles = 23 blue marbles + 32 black marbles = 23 + 32 = 55

 

 

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