Discussion
Karan drives 7 km towards west. Then, he turns right and drives 3 km. After that, he turns right and drives 11 km. Now turning left, he drives 4 km, then turns left again and drives 4 km. Finally turning left, he again drives 4 km. In which direction and how far is he from his starting position?
Answer: D
Karan ends 3 km north of his starting point. Take the start as (0, 0). West 7 km gives (-7, 0). A right turn from west faces north, so 3 km gives (-7, 3). Another right turn faces east, so 11 km gives (4, 3). A left turn faces north, so 4 km gives (4, 7). Two more left turns face west and then south: 4 km west gives (0, 7) and 4 km south gives (0, 3).
The final point is directly above the start, so the answer is North and 3 km. East and 4 km, South and 3 km and West and 4 km come from mixing up a left and a right turn.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development