Q6-------------The avg. speed of Howarh express inclusive of various halts at .................?

Q6-------------The avg. speed of Howarh express inclusive of various halts at stationsis 60kmph.However ,if do not take the time of halts into consideration ,the speed is 72kmph.what is avg. spopage time per hour of journey.


a.1/3 of hour


b.1/4 of hour


c.1/6 of hour


d.1/5 of hour

Q6-------------The avg. speed of Howarh express inclusive of various halts at .................?
The right answer is c


Originally the train in train travels @ 72kmph


hence for travelling 60 km it will take a time of 1*60/72 hrs or 5/6hrs.


The train's average speed being 60 km,its haltage time at various stations must be (1-5/6) or 1/6 hr. for each hour of run.
Reply:an alternative solution:





assume the distance to be 360km (gcm of 72 %26amp; 60)





it takes 5 hours without stops and 6 hours with stops...so in 6 hours, there is one hour of stop... or 1/6 hr/hr