Question

The weights, in kilogram, of some sacks of sugar are −97, 99, 98, 97, 96, 95, 94, 92, 98, 99. What is their average weight?

Answer 1

Total weight = 97 + 99 + 98 + 97 + 96 + 95 + 94 + 92 + 98 + 99 = 965 kg
Total number of sacks of sugar = 10
Average weight$=\frac{\mathrm{Total}\mathrm{weight}}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{sacks}\mathrm{of}\mathrm{sugar}}$
$$\begin{gathered} =\frac{965}{10}\mathrm{kg} \\ =96.5\mathrm{kg} \end{gathered}$$