Question

a car travels a distance 60 km in 45 min find speed in km/h showing your method

Answer 1

distance travelled by car = 60km

time taken by car = 45min. = 45/60 hr = 3/4 hr.

speed = distance/time

        = 60/(3/4)

speed = 60*4/3 = 80km/hr.

Answer 2

80 km/h

Set up a proportion. 60 min/45 min = x km/60 km.

Option 1: 60/45 = 4/3. Multiply that be 60 km. This equals 80.

Option 2: Solve proportionally. Cross multiply. 45x=3600. Divide by 45. This equals 80.