ew Delhi at an avorageIuldiigal from New Delhi?A train is booked to do the run between two places, 55 km apart, in 1 hr 20 min. If it travels forthe first 30 km at 36 km an hour, at what speed must it travel for the rest of the distance in orderto complete the journey in time?16,

ew Delhi at an avorageIuldiigal from New Delhi?A train is booked to do

1.	ew Delhi at an avorageIuldiigal from New Delhi?A train is booked to do the run between two places, 55 km apart, in 1 hr 20 min. If it travels forthe first 30 km at 36 km an hour, at what speed must it travel for the rest of the distance in orderto complete the journey in time?16,
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