the price of a commodity rose by 10% by what percent should a lady reduce her consumption so that her expenditure does not increase
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12
Answer:
a lady should reduce her consumption by 9.09 %
Step-by-step explanation:
Let say Price of Commodity = P Rs per kg
Consumption by Lady = C kg
Total Expenditure = Price of Commodity * Consumption by Lady
= PC Rs
price of a commodity rose by 10%
=> New Price = P + (10/100)P = 1.1P Rs per kg
Consumption Now = PC/(1.1P) = C/1.1 kg
Reduction in Consumption = C - C/1.1 = 0.1C/1.1 = C/11
% Reduction in consumption = ((C/11)/C ) * 100
= 9.09 %
a lady should reduce her consumption by 9.09 %
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