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

Home » Aptitude » Speed, Time and Distance » Question
  1. 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
    1. 15 minutes
    2. 20 minutes
    3. 30 minutes
    4. 1 hour
Correct Option: A

Speed of B = x kmph (let)
Speed of A = 2x kmph
Speed of C =
x
kmph
3

∴ 
Speed of A
=
2x
= 6
Speed of C(x/3)

∴  Required time =
1
of
3
hours
62

=
1
hour = 15 minutes
4



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