Question

The pie diagram in the given figure shows the proportions of different workers in a town. Answer the following questions with its help. 

i. If the total workers is 10,000, how many of them are in the field of construction? 

ii. How many workers are working in the administration? 

iii. What is the percentage of workers in production?

Answer 1

i. Central angle for construction field (θ) = 72°

∴ There are 2000 workers working in the field of construction.

ii. Central angle for administration field (θ) = 36°

∴ There are 1000 workers working in the administration.

iii. Central angle for production field (θ) = 90°

∴ 25% of workers are working in the production field.