The price of sugar rises by 25%. By what percentage must a family reduce its consumption so that its expenditure on sugar stays the same?
A. 20%
B. \(22\frac{1}{2}\)%
C. 25%
D. 15%
A. 20%
B. \(22\frac{1}{2}\)%
C. 25%
D. 15%
Best answer
Answer: A. 20%
Answer: (A) 20%
Reduction \(= \frac{25}{100 + 25} \times 100 = 20\%\). Check: 1.25 × 0.8 = 1.
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