2017 · Q106
Two vehicles which are 100 km apart are running towards each other in a straight line. In how much time will they meet each other provided they follow a uniform speed of 45 km per hour and 80 km per hour respectively?
General Mental Ability, Quantitative Aptitude and StatisticsTime, work and measurement
- A60 minutes
- B55 minutes
- C48 minutes
- D45 minutes
Explanation
The vehicles approach each other with a combined (relative) speed of 45 + 80 = 125 km/h. Time to meet = distance / relative speed = 100 / 125 hours = 0.8 hours = 48 minutes. Hence C.