Interview Q&A / Aptitude

1. A man faces north. He turns 90 degrees clockwise and then 135 degrees anticlockwise. Which direction is he facing now?

   North-west. Net rotation = 90 clockwise - 135 anticlockwise = 45 degrees anticlockwise from north, which is north-west.

   BeginnerQuick answer1 min read
2. Early one morning Priya is standing in an open field, and her shadow falls exactly to her right. Which direction is she facing?

   South. In the morning the sun is in the east, so shadows fall towards the west. If west is on her right, she must be facing south.

   BeginnerQuick answer1 min read
3. Ravi walks 10 km north, turns right and walks 6 km, then turns right again and walks 18 km. How far is he from his starting point, and in which direction?

   10 km to the south-east. After the moves he is 6 km east and 10 - 18 = 8 km south of the start. Distance = square root of (6^2 + 8^2) = 10 km.

   BeginnerQuick answer1 min read