Question

find the speed in kilometers hour distance=300m, time 15 seconds​

Answer 1

Answer:

this 300m/s convert to km/h

do this

1080m/s now multiply

1080 x 15 = 16200

Step-by-step explanation:  

it will be 16200m/15s                                          

Answer 2

Answer:

given

distant=300m

time=15 sec

here

In

15 sec =300 m covered

therefore

in 1sec =300/15 m covered

or in 1 sec=20 m covered

both side multiple by 60

1×60sec =20×60 m covered

or in 60 sec=1200 m covered

or in 1 min=1.2 km covered

( because we know 60 sec=1 min or 1000m =1km)

again both side multiple by 60

in 1×60 min=1.2×60 km covered

or in 60 min=72 km covered

or in 1 hour =72 km. covered (because 1km =60 min)

here we found

72 km distance is covered in 1 hour

therefore

speed=distance/time

=72/1 km/hour

=72 km/hour

answer