Question

if a man walks at a speed of 4 km per hour how long will it take him to walk 3 km

Answer 1

given
speed=4kmph
distance =3km
time =distance/speed
time=3/4hrs
time =0.75hrs=45 min
hope it helps you

Answer 2

Speed = Distance / Time

Time = Distance/ Speed

Time = 3/4

=0.75 Hrs which means 60*0.75 = 45 Minutes.

thanks for the question