With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 3 km/hr, the same distance could have been covered in 7 1/2 hours. What is the distance covered?
Choose one
A) 360 km B) 480 km C) 278 km D) 297 km E) 671 km
Let the distance be x km. Then,   x/(7 1/2) - x/8 = 3   2x/15 - x/8 = 3 =&gt; x = 360 km.   360 kmnswer:360 km
<result>A</result>
With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 3 km/hr, the same distance could have been covered in 7 1/2 hours. What is the distance covered?