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Question 1:
The price of a certain item is increased by 15 %. If a consumer wants to keep his expenditure on the item same as before how much percent must he reduce his consumption of that item?
A. 10 20/23 %
B. 13 1/23 %
Feedback Reduction % in consumption
= {r/(100+r) ×100} % =(15/115 × 100)%
= 300/23 % = 13 1/23 %
C. 16 2/3 %
D. 15 %

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