Komal and Shalu walk 10 km together from the same point towards a point A in the north from point A, Komal walks 6 km towards south and then she walks 3 km towards east. Also, from point A Shalu walks 4 km towards west and then walks 6 km towards south. What is the distance between Shalu and Komal?
Komal and Shalu walk 10 km together from the same point towards a point A in the north from point A, Komal walks 6 km towards south and then she walks 3 km towards east. Also, from point A Shalu walks 4 km towards west and then walks 6 km towards south. What is the distance between Shalu and Komal?
Solution
✅ Correct Option: 4
| Step | Person | Movement | Position after move (x, y) |
|---|---|---|---|
| 1 | Both | Walk 10 km North to A | (0, 0) |
| 2 | Komal | 6 km South | (0, −6) |
| 3 | Komal | 3 km East | (3, −6) |
| 4 | Shalu | 4 km West | (−4, 0) |
| 5 | Shalu | 6 km South | (−4, −6) |
| Check | Komal | Shalu | Difference |
|---|---|---|---|
| North–South (y) | −6 | −6 | 0 km (same line) |
| East–West (x) | +3 | −4 | 3 − (−4) = 7 km |
Komal and Shalu are 7 km apart.