Question

The traffic light at the center of town is green for 45 seconds, then yellow for 5 seconds, then red for 40 seconds, at which point the cycle repeats. If a car approaches the traffic light at a random time, what is the probability that the traffic light will be green?

A. 1/9
B.1/8
C.1/2
D.8/9

Please select the best answer from the choices provided


A
B
C
D

im having a hard time!! help >.<

Answer 1

i am thinking

Answer 2

give me a medal if you want an answer

Answer 3

i will! but please explain it for me too >.>

Answer 4

add all the seconds and stuff

Answer 5

mkay thats 90

Answer 6

is it multiple answer

Answer 7

uhm..no o_o

Answer 8

then how long it the seconds of the green light ?

Answer 9

45 >.>

Answer 10

Hm, the only formula I can think of is \(\ \sf \dfrac{Favorable~Outcome}{Total~Number~Of~Outcomes} \)

So favorable outcome is a green light, 45 seconds, and the total possibility is having a green, yellow and red light! So that would be like having 45 + 5 + 90! :O

Note: 90! Isn't a permutation :3

So that would be: \(\ \sf \dfrac{45}{ 45 + 5 + 40} \rightarrow \dfrac{45}{90} = ~ ? \)

Answer 11

And wot is 45/90? >.>

Answer 12

2! sooo 1/2??

Answer 13

and then reduce it
as low as possible

Answer 14

o.0 How is 45/90 equal to 2? >.>

Answer 15

you're all down now right?

Answer 16

0.5 >.> <.<

Answer 17

Hun I think you meant the 2nd options :> Yesh it's 1/2 ;)

0.5 = 1/2 :>

Answer 18

ugh ty so much! :)

Answer 19

Yw :>