Question

a boy runs 80m in 10 sec find the speed of boy in m per sec and km per h​

Answer 1

Answer:

speed of boy is 8 metre per /second

Answer 2

Answer:

Step-by-step explanation:

Distance = 80m

Time = 10 sec

speed=distance/time

=80/10=8m/s

1 km =1000 m

80 m= 80/1000

         =0.08

1 hour = 60 sec

10 sec = 10 / 60 sec

          =1/6

therefore, speed =0.08/1/6

                      =0.48