Let the speed of the train be
x km/hr and that of the car be
y km/hr.
| Then, |
120 |
+ |
480 |
= 8 ⟹ |
1 |
+ |
4 |
= |
1 |
....(i) |
| x |
y |
x |
y |
15 |
| And, |
200 |
+ |
400 |
= |
25 |
⟹ |
1 |
+ |
2 |
= |
1 |
....(ii) |
| x |
y |
3 |
x |
y |
24 |
Solving (i) and (ii), we get: x = 60 and y = 80.
∴ Ratio of speeds = 60 : 80 = 3 : 4.
