Q. 165.0( 3 Votes )

A jar contains 54 marbles each of which is in one of the colours blue, green and white. The probability of drawing a blue marble is and the probability of drawing a green marble is . How many white marbles does the jar contain?

Answer :

probability of drawing a blue marble is


the probability of drawing a green marble is .


Total no of marbles = 54


Thus no of blue marbles


No of green marbles


Thus no of white marbles = 54-18-24 = 12


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A jar contains 54 marbles each of which is in one of the colours blue, green and white. The probability of drawing a blue marble is and the probability of drawing a green marble is . How many white marbles does the jar contain?

Tamil Nadu Board - Math