A bag contain 3 green balls and some white balls . If the probability of drawing a white ball is thrice that of a green ball. Find the number of white balls in bag
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9 white balls are there
smilyshresta:
how
see if there are 9 white balls they are thrice the no. of green balls
then the probability of getting white ball is also thrice
plz mark it as brainliest
thank you
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A bag contains 15 white and some black balls . If the probability of drawing a black ball from the bag is thrice that of drawing a white ball, find the number of black balls in the bag.
45
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