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  1. In an ornament the ratio of gold and copper is 3 : 2. The percentage of gold in the ornament is :
    1. 60
    2. 40
    3. 30
    4. 20
Correct Option: A

Gold : Copper = 3 : 2
Sum of the terms of ratio
= 3 + 2 = 5

∴  Percentage of gold =
3
 × 100
5

= 60%


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