A person travels equal distances with speeds of 7 km/hr, 8 km/hr and 9 km/hr and takes a total time of 47 minutes. The total distance is?	Choices
A) 6 km	B) 3 km	C) 7 km	D) 9 km	E) 2 km
Let the total distance be 3x km.   Then, x/7 + x/8 + x/9 = 47/60   36x/95 = 47/60 =&gt; x = 2.07.   Total distance = 3 * 2.07 = 6.2 km.   6 kmnswer:6 km
<result>A</result>
A person travels equal distances with speeds of 7 km/hr, 8 km/hr and 9 km/hr and takes a total time of 47 minutes. The total distance is?