A car covers a distance of 715 km at a constant speed. If the speed of the car would have been 10 km/hr more, then it would have taken 2 hrs less to cover the same distance. What is the original speed of the car?

 

  • Option 1)

     

    60 km/hr     

     

  • Option 2)

     

    50 km/hr     

     

  • Option 3)

     

    55 km/hr   

     

  • Option 4)

     

    65 km/hr

     

  • Option 5)

     

    45 km/hr     

     

Answers (1)

Total Distance = 715

Suppose the Original Speed of Car = x

Then, new speed of car = x + 10

As per the given data,

\frac{715}{x}-\frac{715}{x+10}= 2

2x+ 20x - 7150 = 0

x = 55 Km/hr

 

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