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CBSE Class 10 Answered

A bag contains 5 red balls, 8 green balls and 7 white balls. One ball is drawn at random from the bag, find the probability of getting (i) A white or green ball (ii) Neither green ball nor a red ball
Asked by Topperlearning User | 08 Nov, 2017, 01:38: PM
answered-by-expert Expert Answer

Total space number space of space balls equals 5 plus 8 plus 7 equals 20 left parenthesis straight i right parenthesis space space straight P left parenthesis drawing space straight a space white space or space green space ball right parenthesis equals fraction numerator 7 plus 8 over denominator 20 end fraction equals 15 over 20 equals 3 over 4 left parenthesis ii right parenthesis space straight P left parenthesis drawing space neither space green space ball space nor space straight a space red space ball right parenthesis space space space space space equals straight P left parenthesis drawing space straight a space white space ball right parenthesis space space space space space equals 7 over 20


Answered by | 08 Nov, 2017, 03:38: PM

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