30. Rjhel jogs a distance of 84 km in 4 hours. How fast does he joge A. 4 kph B. 40 kph C. 20 kph D. 21 kph

31. Ayesha cycles at an average speed of 7 kph. if she cycles for 416 hours, how far does she travelf D. 3.15 km C. 31.5 km A. 3 150 km B. 315 km​