Respuesta :

Step-by-step explanation:

at most 5 sec means the light must be yellow or green

time for green is 40

40+5 = 45

total time of cycle

40+5+30

= 75

so probability = 45/75

9/15 should be correct as of my knowlege do u know right answer then tell

%= 9/15*100= 60%

Otras preguntas