Which of the following have same number of significant figures?

A. 0.00253

B. 1.0003

C. 15.0

D. 163

Choose the correct answer from the options given below

<p>Significant figures are the digits in a number that carry meaningful information about its precision. In other words, they are the numbers that are known with certainty.</p> <p>Here is how we calculate significant figures for each number:</p> <ul> <li><p>A. 0.00253: There are 3 significant figures here (253). Leading zeroes do not count as significant figures.</p> </li><br/> <li><p>B. 1.0003: There are 5 significant figures here. All non-zero digits are significant, and zeroes between non-zero digits or at the end of the number and after the decimal point are significant.</p> </li><br/> <li><p>C. 15.0: There are 3 significant figures here. The zero after the decimal point counts as it indicates the precision of the measurement.</p> </li><br/> <li><p>D. 163: There are 3 significant figures here. All non-zero digits are significant.</p> </li> </ul> <p>So, comparing these, we see that options A (0.00253), C (15.0), and D (163) each have 3 significant figures.</p>