diff --git a/rideshare.rb b/rideshare.rb
new file mode 100644
index 0000000..be12f1d
--- /dev/null
+++ b/rideshare.rb
@@ -0,0 +1,198 @@
+rides = {
+  DR0001: {
+    RD003: [
+      {
+        cost: 10,
+        rating: 3,
+        date: {day: 3, month: "Feb", year: 2016
+      }
+      },
+      {
+        cost: 45,
+        rating: 2,
+        date: {
+          day: 5, month: "Feb", year: 2016
+        }
+      }
+    ],
+    RD0015: [
+      {
+        cost: 30,
+        rating: 4,
+        date: {
+          day: 3, month: "Feb", year: 2016
+        }
+      }
+    ],
+  },
+  DR0002: {
+    RD0073: [
+      {
+        cost: 25,
+        rating: 5,
+        date: {
+          day: 3, month: "Feb", year: 2016
+        }
+      }
+    ],
+    RD0013: [
+      {
+        cost: 15,
+        rating: 1,
+        date: {
+          day: 4, month: "Feb", year: 2016
+        }
+      }
+    ],
+    RD0066: [
+      {
+        cost: 35,
+        rating: 3,
+        date: {
+          day: 5, month: "Feb", year: 2016
+        }
+      }
+    ]
+  },
+  DR0003: {
+    RD0003: [
+      {
+        cost: 50,
+        rating: 2,
+        date: {
+          day: 5, month: "Feb", year: 2016
+        }
+      }
+    ],
+    RD0066: [
+      {
+        cost: 5,
+        rating: 5,
+        date: {
+          day: 4, month: "Feb", year: 2016
+        }
+      }
+    ]
+  },
+  DR0004: {
+    RD0022: [
+      {
+        cost: 5,
+        rating: 5,
+        date: {
+          day: 3, month: "Feb", year: 2016
+        }
+      },
+      {
+        cost: 10,
+        rating: 4,
+        date: {
+          day: 4, month: "Feb", year: 2016
+        }
+      }
+    ],
+    RD0073: [
+      {
+        cost: 20,
+        rating: 5,
+        date: {
+          day: 5, month: "Feb", year: 2016
+        }
+      }
+    ]
+  }
+}
+
+def num_rides(rides_hash)
+  driver_trips = {}
+  rides_hash.each do |driverid, riders|
+    riders.each do |riderid, trips|
+      if driver_trips.has_key?(driverid)
+        driver_trips[driverid] += trips.length
+      else
+        driver_trips[driverid] = trips.length
+      end
+    end
+  end
+  return driver_trips
+end
+
+def total_revenue(rides_hash)
+  driver_revenue = {}
+  rides_hash.each do |driverid, riders|
+    riders.each do |riderid, trips|
+      trips.each do |trip|
+        if driver_revenue.has_key?(driverid)
+          driver_revenue[driverid] += trip[:cost]
+        else
+          driver_revenue[driverid] = trip[:cost]
+        end
+      end
+    end
+  end
+  return driver_revenue
+end
+
+def average_rating(rides_hash)
+  driver_rating = {}
+  i = 0
+  ratings = []
+  rides_hash.each do |driverid, riders|
+    riders.each do |riderid, trips|
+      trips.each do |trip|
+        if ratings[i].nil?
+          ratings.push([trip[:rating]])
+        else
+          ratings[i].push(trip[:rating])
+        end
+      end
+    end
+    driver_rating[driverid] = (ratings[i].sum.to_f / ratings[i].length).round(2)
+    i += 1
+  end
+  return driver_rating
+end
+
+def most_revenue(rides)
+  driver_revenue = total_revenue(rides)
+  revenue_nums = []
+  top_driver = {}
+  driver_revenue.each do |driver, revenue|
+    revenue_nums << revenue
+  end
+  revenue_nums.sort
+  driver_revenue.each do |driver, revenue|
+    if revenue == revenue_nums[0]
+      top_driver[driver] = revenue
+    end
+  end
+  return top_driver
+end
+
+def highest_rating(rides)
+  driver_rating = average_rating(rides)
+  rating_nums = []
+  top_rating = {}
+  driver_rating.each do |driver, rating|
+    rating_nums << rating
+  end
+  rating_nums.sort
+  driver_rating.each do |driver, rating|
+    if rating == rating_nums.last
+      top_rating[driver] = rating
+    end
+  end
+  return top_rating
+end
+
+driver_rides = num_rides(rides)
+driver_revenue = total_revenue(rides)
+driver_rating = average_rating(rides)
+top_grossing = most_revenue(rides)
+top_rated = highest_rating(rides)
+
+puts driver_rides
+puts driver_revenue
+puts driver_rating
+puts top_grossing
+puts top_rated