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A store sells two kinds of candles, scented and unscented. The scented burns 1/12 inches in 20 minutes and the unscented burns 1/6 inches in 30 minutes. Which type of candle burns in 1 hour and what is its burn rate?

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User Liberforce
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Given :The scented burns
(1)/(12) inches in 20 minutes

The scented candle will burn
(1)/(12) times 3 =(1)/(4) inches in one hour.

The unscented candle burns
(1)/(6) inches in 30 minutes

In one hour it will burn
(1)/(6) times 2=(1)/(3) inches .

Burn rate of scented is
(1)/(4) inches per hour.

Burn rate of unscented is
(1)/(3) inches per hour.

User Rdworth
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8.5k points