Arithmeticmedium · Past Paper
If the price of an article is reduced by 25%, the sale is increased by 30%. What is the net effect on revenue?
A2.5% increase
B2.5% decrease
C5% increase
D5% decrease
✓ Correct Answer: B — 2.5% decrease
Net effect = -25 + 30 + (-25 * 30 / 100) = 5 - 7.5 = -2.5%.
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