Another nice question

 When making a cake 100g of wheat flour 500kg, one egg has 10kcal, 1 liter of milk 80kcal, 1kg sugar 1000Kcal, 100g butter 1000kg.

The recipe 3 eggs, 250g of flour, 200g of butter, 200g of sugar, 200ml of milk, after baking a cake yields 16 slices how many calories does one slice have?

Rute Bezerra de Menezes Gondim