A and R started walking from a same point. A walks 8 km towards north. R walks 7 km towards south. A turns right and walks 8 km. How far (in km) and in which direction is A now from the R?
Show answer & explanation
Correct answer: D
Explanation

AR2 = OA2+OR2
AR2 = 82+152
AR =
AR = 17
A is now 17 km away from R and is in the north-east direction