A car runs at 60 km per hr. A man runs at one-third the

A car runs at 60 km per hr. A man runs at one-third the speed of the car and reaches office from his house in 15 minutes. How far is his office from his house?

Man’s speed =	1	of the speed of car
	3

=	1	× 60 = 20 km per hr.
	3

Time taken to reach office= 15

minutes =	15	=	1	hr.
	60		4

∴ Distance between his house and office
= Speed × Time

= 20 ×	1	= 5 km.
	4