meena walked 20 km towards north then she turns towards her right and walks another 10 km from there she goes towards south direction a distance of 20 km what is the shortest distance between her starting and ending point
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Answer:
Correct option is B)
The movements of Kishen are as shown in Fig. (A to B, B to C and C to D).
AC=(AB−BC)=(10−6)km=4km. clearly, D is to the North-East of A.
∴ Kishen's distance from starting point
A=AD=
AC
2
+CD
2
=
4
2
+3
2
=
25
=5km
So, Kishen is 5 km to the North-East of his starting point
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