Marla starts running around a circular track at the same time Nick starts walking around the same circular track. Marla completes 32 laps around the track per hour and Nick completes 12 laps around the track per hour. How many minutes after Marla and Nick : Crackverbal Support

Marla starts running around a circular track at the same time Nick starts walking around the same circular track. Marla completes 32 laps around the track per hour and Nick completes 12 laps around the track per hour. How many minutes after Print

Modified on: Tue, 12 Oct, 2021 at 12:30 PM

CONCEPT: The question tests on the basic concepts of Unitary method.

SOLUTION:

Marla is 20 laps ahead of Nick every hour.

4 more laps is 20% or 1/5 th of 20.

If 20 laps is the difference for 1 hour, i.e 60 min (100%)

4 laps(20%) as difference shall occur in =60/20 *4

=12 min. (Option C) and you may not have to use any advanced concept of R.S here.

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