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
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The number of significant figures in the question can be calculated by taking out the average of 25.20, 25.25 and 25.0, which is obtained as 25.1 . In case of division, the final answer will contain as many significant figures as there are in a number with least significant numbers. So, the significant number is 3.
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