A motorcycle is twice as fast as a car and car is thrice as fast as scooter. The journey covered by scooter in 54 minutes will be covered by a motorcycle in?

(a)8 minutes
(b)12 minutes
(c)9 minutes
(d)none of these

• 9 mins;
  2x=y;
  3y=z;
  x-motorcycle
  y-car
  z-scooter
  
  
• 10 years agoHelpfull: Yes(0) No(0)