To reach the winning post A will have to cover a distance of (500 - 140)m,
i.e., 360 m.
While A covers 3 m, B covers 4 m.
| While A covers 360 m, B covers |
❨ |
4 |
x 360 |
❩m |
= 480 m. |
| 3 |
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
∴ A wins by 20 m.
