How Much Time will be Taken by the Motorcycle? if

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__:

  1. 8 minutes
  2. 12 minutes
  3. 9 minutes
  4. None of these
Desire Adnan Default Asked on 4th August 2015 in Maths.
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1 Answer(s)

Answer: (3) 9 min
Explanation:-
Let the speed of a motorcycle is X km/hr.
A motorcycle is twice as fast as a car.
Then, the speed of car = 2 X km/hr.

The speed of a car is thrice as fast as scooter.
Then, the speed of scooter = 3 (2 X)
= 3 x 2 X
= 6 X km/hr.

The journey covered by scooter in 54 min.
Then, journey covered by motorcycle = 6 X = 54
X = 54/6
X = 9 min.

Then, the journey covered by motorcycle is 9 min.
Hence, the answer is (3) 9 min.

Anurag Mishra Professor Answered on 4th August 2015.
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