Question

Which of the following rules regarding the significant figures and calculations involving them is not correct?

• A. The result of an addition or subtraction is reported to the same number of decimal places as present in number with least decimal places.
• B. Result of multiplication or division should have same number of significant figures as present in most precise figure
• C. The result of multiplication or division should be rounded off to same number of significant figures as present in least precise figure.
• D. The non-significant figures in the measurements are rounded off.

Answer 1

The correct option is B Result of multiplication or division should have same number of significant figures as present in most precise figure

1. The result of an addition or subtraction is reported to the same number of decimal places as present in number with the least decimal places.

2. The result of multiplication or division should be rounded off to the same number of significant figures as present in number with the least significant number.

3. The result of multiplication or division should be rounded off to the same number of significant figures as present in the least precise figure.

4. The non-significant figures in the measurements are rounded off.

option B is correct