While covering a distance of 54 km, a man noticed that after cycling for 1 hour 15 minutes, the distance covered by him was \( \frac{3}{7} \) of the remaining distance. What was his speed in km/hr?
The length, width and height of a cuboid are in the ratio 10 : 17 : 14, and its total surface area is 1096 cm2. Find the length (in cm) of the cuboid.