Raju and viru start running from the same place in the same direction at the same time,their speeds being 12.5 km/h and 4 m/s respectively. find the distance between them after half an hours.
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Speed of Raju =12.5km/h
Time he will take to cover the distance = half an hour
1 hour = 60 minutes
half an hour =1/2 of 60 minutes = 30 minutes
12.5km/h = 12.5km/60 min
1 hour = 60 min
Distance = Speed×Time
=12.5km/60 min×30 min =6.25km
1km =1000m
6.25km = (1000×6.25)km = 6250m
Speed of Viru = 4m/sec
Time he will take to cover the distance = 30 min
1min = 60 sec
30 min = (30×60)sec = 1800sec
Distance = Speed×Time
=4m/sec×1800sec = 7200m
Now the distance between them = 7200m — 6250m = 950 m
Therefore,the distance between them after half an hour is 950m.
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