Question

A car travels with a uniform speed amd covers 42km in 45 min find the speed of the car.

Answer 1

s = 42 km
t = 45 min =45÷60 = 0.75
speed = s ÷ t
= 42÷0.75
= 56

therefore speed = 56 km/s

Answer 2

the speed of car is 15.55 m/s
steps are
first we convert 42km in m so 42000
we converte 40m in second so 2700
speed=total distance÷total time
42000÷2700= 15.55m/s