Decalitre to Litre Conversion Explained

Understanding metric prefixes is key to solving this question.

• The prefix 'deca-' (symbol: da) means 10 times the base unit.

Therefore, one decalitre (daL) is equal to 10 times the base unit, which is the litre (L).

The conversion is expressed using LaTeX as:

$1 \text{ decalitre} = 1 \times 10 \text{ litres}$

$1 \text{ daL} = 10 \text{ L}$

Evaluating the Options

Based on the conversion:

• Option 1 (10 kilolitre): Incorrect. 1 kilolitre (kL) = 1000 L. 1 daL is much smaller.
• Option 2 (10 litre): Correct. Matches the conversion derived from the 'deca-' prefix.
• Option 3 (100 litre): Incorrect. 100 L is equal to 1 hectolitre (hL), not 1 decalitre.
• Option 4 (10 centilitre): Incorrect. 1 centilitre (cL) = 0.01 L. 1 daL = 1000 cL.

Thus, one decalitre is equivalent to 10 litres.