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A student of performs a titration with different burettes and finds titre values of `25.2 mL`, `25.25 mL`, and `25.0 mL`. The number of significant figures in the average titre value is …..

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A student performs a titration with different burettes and finds titre values of `25.2 mL`, `25.25 mL` and `25.0 mL`. The number of significant figures in the average titre value is 3. The is according to the rules of significant figures.
If two or more numbers having different precision are to the added or subtracted, the answer should be taken as the number of decimal places in the number having less decimal places.
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