This recipe makes 2 portions of fajitas.
 Carly has 700 g of chicken, 950 g of peppers, 100 g of onion, 35 g of spice mix
 and 20 tortillas.
 How much more of each ingredient will she need to make 8 portions by
 following this recipe?
 Recipe: Serves 2
 200 g chicken
 250 g peppers
 30 g onion
 10 g spice mix
 4 tortillas