The ratio of average of expenses on food, clothing and miscellaneous items to the average of expenses of on saving and rent is:

Answer: Option D

Average of (food + clothing + miscellanies)
$$\begin{array}{rl}& =\frac{108°+36°+72°}{3}\\ & =72°\\ & \text{Avg. of }\left(\text{saving + rent}\right)\\ & =\frac{90°+54°}{2}\\ & =72°\\ & \therefore \text{Required ratio}\\ & =72°:72°\\ & =1:1\end{array}$$