A person travels equal distances with speeds of 50km/hr,100km/hr and 120km/hr and takes a total time of 23 minutes. The total distance is?	Select the correct option:
A) 15km B) 30km C) 45km D) 50km E) 60km
Let the total distance be 3x km   x/50 + x/100 + x/120 = 23/60   23x/600 = 23/60   23x = 230   x = 10km   Total distance = 3x = 30km   Answer is 30km
<result>B</result>
A person travels equal distances with speeds of 50km/hr,100km/hr and 120km/hr and takes a total time of 23 minutes. The total distance is?