Question

A scooterist covers a distance of 3km in 5 minutes Calculate his speed in cm per sec m per sec and km per hour

Answer 1

Given

distance = 3 km

time = 5 minutes

1. Speed = distance/time

              =  300000 cm/ 300 sec

              = 1000 cm/s

2. 3 km = 3000m and 5 min = 300 sec

speed = 3000/300 = 10 m/s

3. 3 km = 3 km and 5 min = 1/12 h

Now speed = 3*12/1 = 36 km/h

Answer 2

300000cm/300 sec
1000cm/sec