1
What percentage of total expenditure is on electricity?
Answer & Solution
Corresponding angle for expenditure on electricity = 72°
∵ 360° ≡ 100%
∴ Total expenditure on electricity
$$\eqalign{ & = \frac{72}{360}\times100 \cr & = 20\% \cr} $$
∵ 360° ≡ 100%
∴ Total expenditure on electricity
$$\eqalign{ & = \frac{72}{360}\times100 \cr & = 20\% \cr} $$