# 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

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

Exams
Articles
Questions