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1342

Q:

Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should these metals be mixed so that the mixture may be 15 times as heavy as water?

  • 1
    3: 2
  • 2
    2 :3
  • 3
    2 :4
  • 4
    None of these
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Answer : 1. "3: 2"

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