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There are 60 balls in a box. Some are white and other black.Probability of getting a white ball is 3/2 of getting a black ball. How many of each coloured balls are there? |
Answer» Answer:white colour BALLS=24black colour balls=36step by step explanation:PROBABILITY of GETTING a white ball =3/2(getting black ball) if LHS is X then RHS will be 3X/2 these two events are divergent each other..if one event possible there is no chance to second. Hence X+3X/2=1 5X=2 X=2/5 Probability of getting white is 2/5(12/12)=24/60
24 CHANCES are getting white means there are 24 white balls 60-24=36 are black balls.
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