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Tamil Nadu Board of Secondary EducationHSC Commerce Class 12

An Enquiry was made into the budgets of the middle class families in a city gave the following information. Expenditure Food Rent Clothing Fuel Rice Price(2010) 150 50 10 - Business Mathematics and Statistics

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Question

An Enquiry was made into the budgets of the middle class families in a city gave the following information.

Expenditure Food Rent Clothing Fuel Rice
Price(2010) 150 50 100 20 60
Price(2011) 174 60 125 25 90
Weights 35 15 20 10 20

What changes in the cost of living have taken place in the middle class families of a city?

Chart
Sum

Solution

Expenditure Base Year 
Price 2010
(p0)
Current Year
Price 2011
(p1)
Weight
(W)
P = `"p"_1/"p"_0 xx 100`PW PW
Food 150 174 35 116 4060
Rent 50 60 15 120 1800
Clothing 100 125 20 125 2500
Fuel 20 25 10 125 1250
Rice 60 90 20 150 3000
Total 100   12610

Cost of living index number = `(sum"PW")/(sum"W")`

= `12610/100`

= 126.1

For the middle-class families of the city, the cost of living has increased up to 26.1 % in 2011 as compared to 2010.

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Chapter 9: Applied Statistics - Miscellaneous problems [Page 232]

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Samacheer Kalvi Business Mathematics and Statistics [English] Class 12 TN Board
Chapter 9 Applied Statistics
Miscellaneous problems | Q 7 | Page 232
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