An alloy of gold and silver weight 50 g. It contains 80% gold. How much gold should be added to the alloy so that percentage of gold is increased to 90 ?

An alloy of gold and silver weight 50 g. It contains 80% gold. How muc

1.	An alloy of gold and silver weight 50 g. It contains 80% gold. How much gold should be added to the alloy so that percentage of gold is increased to 90 ?
A.	0 g
B.	0 g
C.	0 g
D.	0 g
Answer» D. 0 g

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An alloy of gold and silver weight 50 g. It contains 80% gold. How much gold should be added to the alloy so that percentage of gold is increased to 90 ?

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