Excluding stoppages the speed of a car is 5o kmph and including stoppages it is 45 kmph For how many...........

Quantitative Aptitude (CDS) Time & distance

Excluding stoppages, the speed of a car is 5o kmph and including stoppages, it is 45 kmph. For how many minutes does the car stop per hour?

16minutes

15minutes

12minutes

14minutes

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Explanation:

Let distance is d meter
Speed is 50 kmph
Let d=50 km
To travel 50 km with 40 kmph time taken
t=50/40
=5/4
=1.2 hour
car Let distance is d meter
Speed is 50 kmph
Let d=50 km
To travel 50 km with 40 kmph time taken
t=50/40
=5/4
=1.2 hour
the car stopped per hour is
0.2 hour =0.2 ×60 minutes
=12 minutes per hour are
0.2 hour =0.2 ×60 minutes
=12 minutes