Question
A box contains βx + 1β green balls, βx + 4β blue
balls and βx β 2β 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 βxβ.Solution
According to question: (x + 4)/(3x + 3) β (x β 2)/(3x + 3) = 1/30 (x + 4 β x + 2)/(3x + 3) = 1/30 6/(3x + 3) = 1/30 3x + 3 = 180 3x = 177 x = 59
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