To travel 720 km, a Express train takes 6 hours more than Duronto. If however, the speed of the Express train is doubled, it takes 2 hours less than Duronto. The speed of Duronto (in km/hr) is?1). 602). 723). 664). 78

To travel 720 km, a Express train takes 6 hours more than Duronto. If

1.	To travel 720 km, a Express train takes 6 hours more than Duronto. If however, the speed of the Express train is doubled, it takes 2 hours less than Duronto. The speed of Duronto (in km/hr) is?1). 602). 723). 664). 78
Answer» 72 is the ANSWER