A runs twice as fast as B and B runs thrice as fast as C.

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A runs twice as fast as B and B runs thrice as fast as C. The distance covered by C in 72 minutes, will be covered by A in :

1. 18 minutes
2. 24 minutes
3. 16 minutes
4. 12 minutes

Correct Option: D

Ratio of the speed of A, B and
C = 6 : 3 : 1
⇒ Ratio of the time taken

=	1	:	1	: 1 = 1 : 2 : 6
	6		3

∴ Time taken by A =	72	= 12 minutes
	6