Candle

Nov 26th, 2009 | By admin | Category: Drain Your Brain

Two candles are the same length.

Both are lit at the same time.

The first candle (#1) burns six hours before it extinguishes itself.

The second candle (#2) burns three hours before it extinguishes itself.

Question : During how much time must candle #1 burn before it is twice the length of candle #2 ?

2 hours

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