Radha walks 6 km towards South. Then she turns right and walks 7 km. After this she turns to South a

M4maths Previous Puzzles

22 Feb 2018 Direction Sense

Radha walks 6 km towards South. Then she turns right and walks 7 km. After this she turns to South and walks 9 km. Then she turns towards west and walks 5 km. How far is she from the starting point?

OPtion

OPTION
1) 15
2) 15.29
3) 12
4) 19.85
5) 20.12
6) 19.21
7) 20.89
8) 20.21
9) 19.59
10) None of these

Solution

As per question Radha starts from Point A and moves to Point B in south by travelling 7 KM. Then she turns right and travels 7KM to reach point C. Then she turns south and reaches point D by travelling 6 KMs. Finally turns west and travels 5 KMS to reach the final point E

Horizontal distance betwween AE = 7+5 =12
Vertical distance between AE= 9+6 = 15
We need to find distance between A and E = Sq. root (12^2 + 15^2 ) = 19.21 KMS

A
| 6
___________|
| C 7 B
9 |
______|
E 5 D

Correct Option: 6 Best Solution (0)