The pie chart given below shows the expenditure incurred by a person on 7 articles. The total expenditure of all these 7 articles are 3600. Expenditure incurred on a particular article is shown in terms of degree with respect to the total expenditure incurred in all these 7 articles.

What is the average expenditure incurred on article P and Q?

950

Total expenditure on P & Q = \(\frac{70º + 120º }{360º}\) × 3600

= 1900

Average expenditure on P & Q = \(\frac{1900 }{2}\) = 950