Question

Mary covers a distance of 12.8 km in 2 hours 8 minutes on cycle find her speed in kilometre per hour

Answer 1

Answer:

let's convert minutes in hour first

8 minutes equals 8/60 hour or 2/15 hour

now calculate total time taken by Mary

2hours + 2/15 hour= 2.133 hours

speed = distance /time

distance given 12.8 km

now speed = 12.8/2.133 = 6km/hr

thanks