1) A person travels a distance of 7 km towards east from his house ,then travels 7 km towards north and then a distance of 7 km towards east and finally 7 km towards north .What is the vertical diastance traveled by him? A) 17 B) 15 C) 21 D) 14 Answer: Option DExplanation: Let A and E be the initial and final position . The vertical distance travelled= BC + ED = (7+7) km = 14 km
