Ram arrives at a Bank 15 minutes earlier than scheduled

Ram arrives at a Bank 15 minutes earlier than scheduled time if he drives his car at 42 km/hr. If he drives car at 35 km/hr he arrives 5 minutes late. The distance of the Bank from his starting point is

Let the required distance be x km.
Difference of time = 15 + 5 = 20 minutes

=	1	hour
	3

According to the question,

x	−	x	=	1	⇒	6x − 5x	=	1
35	−	42	=	3	⇒	210	=	3

⇒	x	=	1
	210		3

⇒ x =	210	= 70 km.
	3