Question
A box contains ‘x + 1’ green balls, ‘x + 4’ blue
balls and ‘x – 2’ yellow balls. If the probability of drawing a yellow ball is 1/30 less than the probability of drawing a blue ball, find the value of ‘x’.Solution
According to question: (x + 4)/(3x + 3) – (x – 2)/(3x + 3) = 1/30 (x + 4 – x + 2)/(3x + 3) = 1/30 6/(3x + 3) = 1/30 3x + 3 = 180 3x = 177 x = 59
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