I need help with a math problem

Mathematics
Tutor: None Selected Time limit: 1 Day

What is the probability of arriving at a traffic light when it is red if the red signal is flashed for 30 sec, the yellow signal for 5 sec, and the green signal for 40 sec?
A.
B.
C.
D.
Dec 1st, 2015

hello

probability = time for red light / total time 

                 = 30 / 30+5+40

                 =30 / 75

                 = 0.4


ANSWER IS option B

C. The probability is 0.40


hope you understood..please message if you have any doubts...thank you
Dec 1st, 2015




ANSWER IS option B

B. The probability is 0.40


Dec 1st, 2015




ANSWER IS option B

B. The probability is 0.40


Dec 1st, 2015

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