two candles of equal length start burning at the same time. one of the candles burn down in 4 hour' the other in 5 hour. how many hours will they burn before on
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Nabilafh19
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two candles of equal length start burning at the same time. one of the candles burn down in 4 hour' the other in 5 hour. how many hours will they burn before one candle is three times the length of the other?
pake cara ya.....
pake cara ya.....
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