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Quant Daffodil question.

Q. A box contains 27 marbles some are blue and others are green. If a marble is drawn at random from the box, the probability that it is blue is 1/3. Then how many number of green marbles in the box? A. 10 B. 15 C. 14 D. 18

  • Neelam
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  • 6 Answers
6 Answers
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  • 18


  • 15


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  • 18


  • Answer – strongD. 18/strongbr /strongExplanation: /strongbr /Blue marble – xbr /xc1/27c1 = 1/3br /x/27=1/3br /x=27/3=9br /No of green marbles = Total – Blue marblebr /=27-9br /=18


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