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Mathematics, 05.05.2020 20:44 jaymoney0531

A straight one-way city street has 8 consecutive lights. Every light remains green for 1.5 minutes, yellow for 3 seconds and red for 1.5 minutes. The lights are synchronised so that each light turns red 10 seconds after the preceding one turns red. What is the longest interval of time, in seconds, during which all all 8 lights are green?.

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A straight one-way city street has 8 consecutive lights. Every light remains green for 1.5 minutes,...
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