Mathematics of class 5 question you bole na runs at a speed of 12 km per hour how long will it take to run a 400 metre race?
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HLW MATE#!
WE know that TIME=DISTANCE/SPEED
SO, first of all we need to change the speed from km/hr to m/s
:12×5/18=10/3 m/s
NOW putting the values in formula
TIME=400/10/3=400×3/10=120 seconds or 2 minute
THANK U✨☺
WE know that TIME=DISTANCE/SPEED
SO, first of all we need to change the speed from km/hr to m/s
:12×5/18=10/3 m/s
NOW putting the values in formula
TIME=400/10/3=400×3/10=120 seconds or 2 minute
THANK U✨☺
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