The pie chart shows the cost of construction of a house in degree.

What is the average expenditure on timber, super-vision, and cement?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 15%.
Given that
The total expenditure on timber, super-vision and cement = 36º + 54º + 72º = 162º
According to the question
The average expenditure on timber, super-vision and cement = 162º/3 = 54º
The average expenditure on timber, super-vision and cement in percentage = (54º/360º) × 100 = 15%
Hence, the correct answer is 15%.