after crash current Rysiek lit four candles. The first candle lit two minutes after the lights went out. Another candle lit every 5 minutes. When the last candle went out, back lit light. How much time took power failure when a candle burns in 7 minutes?
Solution tasks:
time from ignition to ignite the first candle lit świeczkiZanim last quarter, 4 candle has been 5 * 3 = 15 (minutes), because the four candles lit - an interval of five minutes between each inflammation. A total of 3 intervals every 5 minutes or 15 minutes from inflammation of a candle to ignite four candles. Duration
awarii4 candle burned a total of 7 minutes so persistent failure: Time to ignite the first candle to ignite + Time + Time fourth candle burning four candles which is 2 + 15 + 7 = 24 (minutes)
Answer: The failure lasted for 24 minutes
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