An urn contains 2 green balls, 9 purple balls, 18yellow balls, 10 blue – InterviewSolution

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1.	An urn contains 2 green balls, 9 purple balls, 18yellow balls, 10 blue balls and 7 red balls. Whatis the probability of drawing a blue or red ball?
Answer» Total no. of balls = 2+18+9+10+7=46therefore total no. of blue balls= 10so the probability of getting blue balls is 10/46 which is 5/23

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