A person travels equal distances with speeds of 3 km/hr, 4 km/hr and 5 km/hr and takes a total time of 47 minutes. The total distance is? Choose the correct choice from the following.
A) 6 km
B) 3 km
C) 9 km
D) 5 km
E) 1 km
Let the total distance be 3x km.   Then, x/3 + x/4 + x/5 = 47/60   47x/60 = 47/60 =&gt; x = 1.   Total distance = 3 * 1= 
<gadget id="calculator">3 * 1</gadget>
<output>3</output>
3 km.   Answer: 3 km
<result>B</result>
A person travels equal distances with speeds of 3 km/hr, 4 km/hr and 5 km/hr and takes a total time of 47 minutes. The total distance is?