Geography 2015 JAMB Past Questions - Question 5: The ground distance along the river from the confluence of river Obe and Opi to the bridge across River Obe is 5.5 kilometres. What is the scale of the map in Representative fraction

The ground distance along the river from the confluence of river Obe and Opi to the bridge across River Obe is 5.5 kilometres. What is the scale of the map in Representative fraction