Johnson left for his office in his car. He drove 15 km towards North and then continued for 10 km towards West. He then turned to the south and covered 5 km. Further, he turned to the East and drove for 8 km. Finally, he turned right and drove 10 km. How far and in which direction is he from his starting point?
Prashanthi travels 30 km towards North then takes about turn and then travels south for 55 km. Taking North direction as positive and south direction as negative, find the prashanthi's distance from the initial starting point.