Study the graph given below of a person who started from his home and returned at the end of the day. Answer the questions that follow.

(a) At what time did the person start from his home?
(b) How much distance did he travel in the first four hours of his journey ?
(c) What was he doing from 3 pm to 5 pm?
(d) What was the total distance travelled by him throughout the day ?
(e) Calculate the distance covered by him in the first 8 hours of his journey.
(f) At what time did he cover 16 km of his journey?
(g) Calculate the average speed of the man from (a) A to B (b) B to C (c) (h)At what time did he return home?