question_answer 39)

How many significant figures should be present in the answer of the following calculations? (i) \[\frac{0.02856\times 298.15\times 0.112}{0.5785}\] (ii) \[5\times 5.364\] (iii) \[0.0125+0.7864+0.0215\]

Answer:

(i) Least precise term is 0.112 with three significant figures, hence the result will have three significant figures. (ii) '5' is exact number, 5.364 has four significant figures. Thus, there will be four significant figures in the result. (iii) All the numbers have four decimal places, hence, the result will be reported upto four places of decimal.