Gold coin

Gold coin contains 964 promile pure gold, which is 7.16 g. What is the weight of coin in grams?

Result

x =  7.427 g

Solution:

x=1000964⋅7.16=7.427 gx = \dfrac{ 1000 }{ 964 } \cdot 7.16 = 7.427 \ \text{g}

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