Question

B is 100 m north east of c if a is 100 m morth west of c then a is in which direction of b

Answer 1

First we have to consider a co-ordinate axis(+ve X as East ,-Ve X as West and +Y as north and -Y as south)
as we are taking c as a reference in both the cases ,take c as origin.
1.Given B is 100m North East of C i.e A is in the I st quadrant
 2. Given A is 100m North West of C i.e B is in II nd Quadrant

This shows us that A is towards The West of B