The \(₹10\) coin is an alloy of copper and nickel called ‘cupro-nickel’. Copper and nickel are mixed in a \(3 : 1\) ratio to get this alloy. The mass of the coin is \(7.74\) grams. If the cost of copper is \(₹916\) per kg and the cost of nickel is \(₹1315\) per kg, what is the cost of these metals in a \(₹10\) coin? 
 
Ans:
 
Cost of copper \(=\) \(₹\)
 
Cost of nickel \(=\) \(₹\)
 
[Note: Enter the decimal upto three decimal places]