With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 2 km/hr, the same distance could have been covered in 7 1/2 hours. What is the distance covered? Choose the correct option
A) 187 km	B) 480 km	C) 278 km	D) 240 km	E) 671 km
Let the distance be x km. Then,   x/(7 1/2) - x/8 = 2   2x/15 - x/8 = 2 =&gt; x = 240 km.   Answer:240 km
<result>D</result>
With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 2 km/hr, the same distance could have been covered in 7 1/2 hours. What is the distance covered?