A person travels first 100km at 40km/hr and the next 100km at 60km/hr. The average speed for the first 200km of the tour is? Select the correct option.
A) 36km/hr  B) 50km/hr  C) 48km/hr  D) 60km/hr  E) 55km/hr
Total time taken = 100/40 + 100/60 = 25/6 hrs   Average speed = 200*6/25= 
<gadget id="calculator">200*6/25</gadget>
<output>48</output>
48km/hr   Answer is 48km/hr
<result>C</result>
A person travels first 100km at 40km/hr and the next 100km at 60km/hr. The average speed for the first 200km of the tour is?