Question

If Mohini runs at a speed of 25 km per hour, how long will she take to run a 800-metre race​

Answer 1

Answer:

s=d/t

25=d/60

25×60=d

150=d

1hr = 150km

?hr=0.8km

8/150×10

1/75×5

=1/375hrs

Answer 2

s = d/t

t= d/s

i.e 0.8/25

= 0.032

0.032 × 60 = 1.92minutes

she will take 1.92 minutes to finish the race

or 0.032 hours to finish the race

but i can't understand HOW A HUMAN CAN RUN AT 25KM/H SPEED!!!??