A is twice as fast as B, and B is thrice as fast as C is.

A is twice as fast as B, and B is thrice as fast as C is. The journey covered by
C in 1 1 hours will be covered by A in
2

Time taken by C = t hours

∴ Time taken by B =	t	hours
	3

and time taken by A =	t	hours
	6

Here, t =	3	hours
	2

=	1	hour
	4

=		1	× 60		minutes
		4

= 15 minutes

C in 1	1	hours will be covered by A in
	2