Real Numbers

Question

A bag contains 5 red balls, 7 white balls, 5 green balls and 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball is (i) white, (ii) red or black, (iii) not green, (iv) neither white nor black.

Solution

Solution not provided.
Ans. $left parenthesis straight i right parenthesis space 7 over 25 space space left parenthesis ii right parenthesis space space 13 over 25 space space space left parenthesis iii right parenthesis space space 4 over 5 space space space left parenthesis iv right parenthesis space 4 over 5$

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Real Numbers

A bag contains 5 red balls, 7 white balls, 5 green balls and 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball is (i) white, (ii) red or black, (iii) not green, (iv) neither white nor black.

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