Winnie drives 184 miles.
She drives 60 miles on ordinary roads and the rest on a motorway.
She completes the journey in 3 hours.
She drives at an average speed of 40mph on ordinary roads.
Work out her average speed on the motorway.

need answer with working out pls

Ben and cam are scuba diving. ben is 15.815.8 meters below the surface of the water. cam is 4.24.2 meters above ben. what is cam's position relative to the surface of the water? choose 1 choose 1 (choice a) a 11.611.6 meters above the surface of the water (choice b) b 11.611.6 meters below the surface of the water (choice c) c 2020 meters above the surface of the water (choice d) d 20 meters below the surface of the water