Esther was facing S 20^\circ W. She turned 90^\circ in the clock wise direction. What direction is she facing?
A
N 70o W
B
S 70o W
C
N 20o W
D
S 20o E
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
The bearing S 20^\circ W is equivalent to a bearing of 200^\circ.
Moving clockwise 90^\circ ⇒ 200^\circ + 90^\circ
= 290^\circ
This is equivalent to N 70^\circ W.
Source: Myschool Past Questions Archive (Record #36642)