Diameter of the wheel of the car = 80 cm
Radius (r) of the wheel of the car = 40 cm
Circumference of wheel =\\( 2 \\pi r\\)
\\( =2 \\pi(40)=80 \\pi \\mathrm{cm}\\)
Speed of car = 66 km/hr
\\( =\\frac{66 \ imes 100000}{60} \\mathrm{cm} / \\mathrm{min}\\)
\\( =\\frac{35000}{8}=4375\\)
Therefore , each wheel of the car will make 4375 revolutions.