Question

A bag contains 14 balls of which x are white if 6 more white balls are added to the bags the probability of drawing a white ball is 1/2 find the value of x

Answer 1

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Answer 2

P.E=x+6/20
1/2 =x+6/20
(x+6)2=20
2x+12=20
2x=8
therefore,x=4