Quantitative Aptitude – TSD – A straight road connects points A and B


Slot – 1 – Quantitative Aptitude – TSD – A straight road connects points A and B


Q. A straight road connects points A and B. Car 1 travels from A to B and Car 2 travels from B to A, both leaving at the same time. After meeting each other, they take 45 minutes and 20 minutes, respectively, to complete their journeys. If Car 1 travels at the speed of 60 km/hr, then the speed of Car 2, in km/hr, is?
  1. 80
  2. 100
  3. 70
  4. 90

Answer: 90

Solutions:
Time for the cars to meet each others = √(45×20)=30 minutes
So ratio of speed = (20+30)/(45+30) = 50/75 = 2/3
60/x = 2/3
X = 90 kmph


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