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
• 2680 दृश्य
• 6 उत्तर

• 18

  • Shruti
  • 11 अक्तूबर
  • 0 टिप्पणी

  0

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• 18

  • Rajat
  • 18 अप्रैल
  • 0 टिप्पणी

  0

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• 15

  • Yaseen
  • 09 मार्च
  • 0 टिप्पणी

  0

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• 18

  • Vibhor
  • 12 नवम्बर
  • 0 टिप्पणी

  0

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• 18

  • Pooja
  • 14 अक्तूबर
  • 0 टिप्पणी

  0

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• 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

  • Shreya
  • 29 जून
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