A person needs to travel to a place which is 36 km far from where he lives and come back. If he drives at a speed of 20 m/sec what is the time needed for driving the car?
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1 hour
Step-by-step explanation:
since he has to go and come back
total distance is=36+36=72 km
since speed is given in m/s it has to be converted into km/hr
therefore multiply 20m/s by 18/5
the ans. is 72km/hr
time required for the entire journey is
distance/speed
=72/72
= 1 hour
HOPE IT HELPS!!!!
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