A train takes 2 hours to travel from Ajmer to Jaipur, which are 130km apart. How much time will it take to travel from Delhi to Bhopal which are 780km apart if the train is travelling at the uniform speed?
Speed = 
…(i)
Distance covered Ajmer to Jaipur = 130 km
Time taken = 2 hours
Using (i)
Speed = 
= 65 km/hour …(ii)
Speed is uniform
Let the time taken to cover distance between Delhi and Bhopal be ‘a’
Distance between Delhi and Bhopal = 780 km
Using (i) and (ii)
⇒ 65 = 
⇒ a = 
Divide numerator and denominator by 5 we get
⇒ a = 
= 12 hours
Time to travel from Delhi to Bhopal is 12 hours
67