ANS:C - 3 : 4
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.
