diff --git a/final-worksheet.rb b/final-worksheet.rb
new file mode 100644
index 0000000..6812982
--- /dev/null
+++ b/final-worksheet.rb
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+#hashes with key of driver's ID and value of an array of hashes. 
+#Each hash contains the information of a single ride the driver did.
+drivers = {
+  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
+    }
+  ]
+}
+
+most_profit_array = []
+average_rating_array = []
+
+# - the number of rides each driver has given
+drivers.each do |key, value|
+  rides = value.length
+  print "Driver #{key} gave #{rides} rides,"
+  
+  # - the total amount of money each driver has made
+  profit_array = []
+  value.each do |hash|
+    profit = hash[:cost]
+    profit_array.push(profit)
+  end
+  print " made $#{profit_array.sum},"
+  most_profit_array.push(profit_array.sum)
+  
+  # - the average rating for each driver
+  rating_array = []
+  value.each do |hash|
+    driver_rating = hash[:rating]
+    rating_array.push(driver_rating.to_f) 
+  end
+  rating_average = (rating_array.sum)/rating_array.length 
+  puts " and has an average rating of #{rating_average}."
+  average_rating_array.push(rating_average)
+end
+
+
+
+most_money_driver = most_profit_array.max
+
+highest_average_rating = average_rating_array.max
+
+
+drivers.each do |key, value|
+  # - Which driver made the most money?
+  profit_array = []
+  value.each do |hash|
+    profit = hash[:cost]
+    profit_array.push(profit)
+    profit_sum = profit_array.sum
+    if profit_sum == most_money_driver
+      puts "Driver #{key} made the most money."
+    end
+  end
+  
+  
+  # - Which driver has the highest average rating?
+  rating_array = []
+  value.each do |hash|
+    driver_rating = hash[:rating]
+    rating_array.push(driver_rating.to_f) 
+  end
+  rating_average = (rating_array.sum)/rating_array.length 
+  if rating_average == highest_average_rating
+    puts "Driver #{key} has the highest average rating."
+  end
+end
+