speed of 72 km/hr. How far is Warangal from New DeunA train is booked to do the run between two places, 55 km apart, in I hr 20 min. If it travels forhe first 30 km at 36 km an hour, at what speed must it travel for the rest of the distance in ortocomplete the journey in time?

speed of 72 km/hr. How far is Warangal from New DeunA train is booked

1.	speed of 72 km/hr. How far is Warangal from New DeunA train is booked to do the run between two places, 55 km apart, in I hr 20 min. If it travels forhe first 30 km at 36 km an hour, at what speed must it travel for the rest of the distance in ortocomplete the journey in time?
Answer» 55km= ABTotal time= 1 hour 20 minTotal distance travelled= 30kmS1= 36km/hrT1= distance travelled/S1=30/36=5/6 hr=50minremaining time= 40 min = 4/6 hrremaining distance= 25kmrequired speed= 25/(4/6) km/hr=25*6/4 km/hr=150/4 km/hr= 37.5 km/hr