No person shall drive a vehicle of the first division as defined in 10-1-1 of this Title, upon any public highway in this Municipality at a speed higher than is reasonable and proper having regard to the traffic and the use of the way or so to endanger the life or limb or injure the property of any person. If the rate of speed of any motor vehicle of said First Division, operated upon any public highway in this Municipality where the same passes through the business district exceeds twenty (20) miles an hour, or if the rate of speed of any such motor vehicle operated on any public highway in this Municipality where the same passes through the residence district exceeds twenty (20) miles an hour, or if the rate of speed of any such motor vehicle operated on any public highway in this Municipality in a suburban district, exceeds thirty (30) miles an hour, such rates of speed shall be prima facie evidence that the person operating such motor vehicle is running at a rate of speed greater than is reasonable and proper having regard to the traffic and use of the way or so as to endanger the life or limb or injure the property of any person.