How many significant figures should be present in the answer of the following calculations? (i) 0.02856×298.15×0.112/0.5785 (ii) 5 × 5.364 (iii) 0.0125 + 0.7864 + 0.0215



Q.31:- How many significant figures should be present in the answer of the following calculations?
(i) 0.02856×298.15×0.112/0.5785
(ii) 5 × 5.364
(iii) 0.0125 + 0.7864 + 0.0215

 

Answer:-

(i) Least precise term i.e. 0.112 is having 3 significant digits.



∴ There will be 3 significant figures in the calculation.
(ii) 5.364 is having 4 significant figures.
∴ There will be 4 significant figures in the calculation.
(iii) Least number of decimal places in each term is 4.
∴ There will be 4 significant figures in the calculation.