question_answer

Malti walked 12 metres towards West, then turns to her right and walked 8 metres and then turns to her left and walked 6 metres. Finally she turns around and walked 12 m straight. What is the shortest distance (in metres) between her starting point and the present position?

A)  30                               

B)  20

C)  10                               

D)  none of these

Correct Answer: C

Solution :

: Maiti is at 0 initially and finally reached at D. Now, use Pythagoras theorem in \[\Delta ADO\] Distance between her initial and final position is DO.