Respuesta :
total intersections=36
since out of every 16 intersections, 4 had a red light. this means out of 36, 8 had red lights. So, she had to stop at 8 intersections.
since out of every 16 intersections, 4 had a red light. this means out of 36, 8 had red lights. So, she had to stop at 8 intersections.