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Q:

In two types of brass ratio of copper and zinc are 8: 3 and 15: 7 respectively. The ratio in which these two types of brass should be mixed, so that the ratio of copper and zinc in this new type of brass become 5: 2 is 

  • 1
    7: 4
  • 2
    2: 3
  • 3
    5: 2
  • 4
    3: 2
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Answer : 3. "5: 2"

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