Question

a school bus take 45 minute to cover a distance of 18 km .Calculate it's speed in km/hour and m/second

Answer 1

DISTANCE = 18KM

time taken = 45 minutes

AS WE KNOW THAT SPEED = DISTANCE /TIME

let the speed be x

then. x = 45/18

=> x = 15/6 = 2.5 km/hr

Answer 2

Answer:

24km/h, 6.67 m/s

Steps:

Speed = Distance ÷ Time

Here, time = 45/60 hours = 3/4 hours

Therefore, speed = 18 ÷ (3/4) = 24 km/h

W.K.T 1km = 1000m

1 hour = 60 minutes = 60 × 60 seconds = 3600 seconds

Speed in m/s = (24 × 1000) ÷ (1× 3600) = 20/3 = 6.67