Yuvan purchases 18 shirts for \(₹\)197 and Gokul purchases 13 shirts for \(₹\)287. Calculate who bought the shirt costlier and also find out how much amount they both spent on buying one shirt.
Yuvan purchases one shirt for an amount of \(₹\).
Gokul purchases one shirt for an amount of \(₹\).
bought the shirt Costlier.
[Note: Submit the answer as a whole number].