diff --git a/worksheet.rb b/worksheet.rb
index ece4662..e759edd 100644
--- a/worksheet.rb
+++ b/worksheet.rb
@@ -2,18 +2,119 @@
 # Step 1: Establish the layers
 
   # Write a list of the layers here
+  # Hash, Array, Hash.
 
 ########################################################
 # Step 2: Assign a data structure to each layer
 
   # Copy your list from above, and write what data structure each layer should have
+  # Driver id HASH (key = id#) to an ARRAY (value) of all rides under
+  # that id. Then a HASH of information from each of their rides.
 
 ########################################################
 # Step 3: Make the data structure!
 
-    # Setup the data strcture and manually write in data presented in rides.csv
+  # Setup the data structure and manually write in data presented in rides.csv
+
+  driver_id_rides = {
+
+    "DR0001": [
+      {
+        date: "3rd Feb 2016",
+        cost: 10,
+        rider_id: "RD0003",
+        rating: 3
+      },
+      {
+        date: "3rd Feb 2016",
+        cost: 30,
+        rider_id: "RD0015",
+        rating: 4
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 45,
+        rider_id: "RD0003",
+        rating: 2
+      }
+    ],
+    "DR0002": [
+      {
+        date: "3rd Feb 2016",
+        cost: 25,
+        rider_id: "RD0073",
+        rating: 5
+      },
+      {
+        date: "4th Feb 2016",
+        cost: 15,
+        rider_id: "RD0013",
+        rating: 1
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 35,
+        rider_id: "RD0066",
+        rating: 3
+      }
+    ],
+    "DR0003": [
+      {
+        date: "4th Feb 2016",
+        cost: 5,
+        rider_id: "RD0066",
+        rating: 5
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 50,
+        rider_id: "RD0003",
+        rating: 2
+      }
+    ],
+    "DR0004": [
+      {
+        date: "3rd Feb 2016",
+        cost: 5,
+        rider_id: "RD0022",
+        rating: 5
+      },
+      {
+        date: "4th Feb 2016",
+        cost: 10,
+        rider_id: "RD0022",
+        rating: 4
+      },
+      {
+        date: "5th Feb 2016",
+        cost: 20,
+        rider_id: "RD0073",
+        rating: 5
+      }
+    ]
+  }
 
 ########################################################
-# Step 4: Total Divers Earnings and Number of Rides
+# Step 4: Total Drivers Earnings and Number of Rides
 
   # Use an iteration block to print driver's total rides and money made
+
+  # Inside the first hash, key=driver_id_rides value=array
+  driver_id_rides.each do |key, value|
+    puts "\n-----------------"
+    puts "Driver Id: " + key.to_s
+    puts "-----------------"
+    puts "Has given #{value.length} rides and"
+
+    cost_array = []
+    rating_array = []
+
+    value.each do |index|
+      # For each matching key, it adds the value to the selected array
+      index.each {|key2,value2| cost_array << value2 if key2 == :cost}
+      index.each {|key2,value2| rating_array << value2 if key2 == :rating}
+    end
+
+    puts "has earned $" + cost_array.inject(:+).to_s + " dollars"
+    puts "Average rating: " + (rating_array.inject(:+).to_f / rating_array.length).round.to_s
+  end