Due to the invasion of a floating Island on River Nile, Waiswa cannot use his usual route to sail from Busaana to Kalangala. He instead first sailed Northwards to Bukamba then turns to the East to get to Kalangala. Bukamba is 30kmNorth of Busaana. Kalangala is 20km East of Bukamba. The boat engine consumes diesel worth UGX.1100 per kilometer. Task: Help Waiswa establish the cost of the extra fuel he will need to cover the unusual distance to safely destination.​