Answer:
Option D
Explanation:
Let A and f be the initial and final positions
Now AF $= \sqrt{AE^{2}+EF^{2}}$
AE =CD-BA =20-8 =12m
EF =DF-DE =DF-CB =20-15 =5 m
Therefore AF $=\sqrt{144+25}$
$=\sqrt{169}$ = 13 m
Her house is towards north-west from the hostel