The mass of a box measured by a grocer's balance is 2.3 kg. Two gold p – InterviewSolution

1.	The mass of a box measured by a grocer's balance is 2.3 kg. Two gold pieces of masses 20.15 g and 20.17g are added to the box. What is (a) total mass of the box (b) the difference in masses of gold pieces to correct significant figures.
Answer» Solution :DIFFERENCE in MASS of gold pieces = `0.02 g` In correct SIGNIFICANT figure (2 significant fig. minimum DECIMAL) will be 0.02 g.

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