You are located at X and your school is located at Y. There is no straight path from your house to school. So, you first go to A which is 30 m due north of X, then go to B which is 40 m due west of A, then go to C which is 30 m due north of B and finally you reach your school at Y which is 40 m due west of C. With respect to your school the correct direction of your house is
CTET Paper I - Jul 2019, Q65 (Official PYQ)