Elise lights three candles at the same time. They are all three of the same height, but of different thicknesses. Each candle burns evenly. It takes 10 hours for the first candle to burn down completely, 8 hours for the second candle and 12 hours for the third candle. When Elise blows out all three candles, the first is exactly twice as high as the second. a) At what time does Elise blow out the three candles? b) Find out how high the second candle is in relation to the third. Do you know how to solve the problem?

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