The mass of a box measured by a grocer's balance is 2.3 kg. Two gold pieces 20.15 g and 20.17 g are added to the box. (i) What is the total mass of the box? (ii) The difference in masses of the pieces to correct significant figures.

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

1.	The mass of a box measured by a grocer's balance is 2.3 kg. Two gold pieces 20.15 g and 20.17 g are added to the box. (i) What is the total mass of the box? (ii) The difference in masses of the pieces to correct significant figures.
Answer» <html><body><p></p>Solution :(i) <a href="https://interviewquestions.tuteehub.com/tag/mass-1088425" style="font-weight:bold;" target="_blank" title="Click to know more about MASS">MASS</a> of box = 2.3 kg <br/> Mass of <a href="https://interviewquestions.tuteehub.com/tag/gold-1008823" style="font-weight:bold;" target="_blank" title="Click to know more about GOLD">GOLD</a> pieces = 20.15 + 20.17 = 40.32 g = 0.04032 kg <br/> <a href="https://interviewquestions.tuteehub.com/tag/total-711110" style="font-weight:bold;" target="_blank" title="Click to know more about TOTAL">TOTAL</a> mass = 2.3 + 0.04032 = 2.34032 kg <br/> In correct significant figure mass = 2.3 kg (as least decimal) <br/> (<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a>) Difference in mass of gold pieces = 0.02 g <br/> In correct significant figure (2 significant <a href="https://interviewquestions.tuteehub.com/tag/fig-460913" style="font-weight:bold;" target="_blank" title="Click to know more about FIG">FIG</a>, minimum decimal) will be 0.02 g</body></html>