22 Varun leaves home at 13 00 and cycles 12 km to college. The distance-time graph below shows Varun’s journey. His sister Kiran leaves college at 13 10 and cycles home on the same road at a constant speed of 16 km/h. (a) On the same grid, draw the distance-time graph for Kiran’s journey. (b) How far was Kiran from home when she passed Varun? (c) Find Varun’s speed for the first 20 minutes of his journey. Give your answer in kilometres per hour. (d) On the grid below, draw the speed-time graph for Varun’s journey.