A man, while driving to his office, finds three traffic signals on his way. the probability that the traffic light is red when he reaches the first, second and third traffic signal is 5/8, 5/6 and 3/5 respectively. what is the probability that he finds at least one traffic light on his way which is not red?
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Total number of lights in 3 signals = 3x3 = 9
Total non red lights = 9-3 (these 3 are red) = 6
Total Probability = 6/9 = 2/3
Total non red lights = 9-3 (these 3 are red) = 6
Total Probability = 6/9 = 2/3
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