Question

The annual rainfall in Vidarbha in five years is given below. What is the average rainfall for those 5 years ? 900 mm, 650 mm, 450 mm, 733 mm, 400 mm

Answer 1

Average rainfall for 5 years = $\frac{\mathrm{Total}\mathrm{rainfall}\mathrm{in}5\mathrm{years}}{5\mathrm{years}}$
$$\begin{gathered} =\frac{900+650+450+733+400}{5} \\ =\frac{3133}{5} \\ =626.6 \end{gathered}$$
Thus, average rainfall for 5 years is 626.6 mm.