Mathematics · Speed, Time and Distance
Two trains are travelling towards each other on parallel tracks, 9660 km apart. Train A's initial speed is 80 km/h and Train B's initial speed is 60 km/h. If Train A's speed is reduced by 10% and Train B's speed is increased by 10%, what is the ratio of the time taken for the trains to meet initially to the time taken after their speed adjustments?
- 169 : 68
- 269 : 70
- 370 : 69✓
- 468 : 69
Correct answer
70 : 69
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