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A salary is increased by 25% then decreased by 25%. Net change is:
Ano change
B6.25% decrease
C6.25% increase
D25% decrease
Answer & Solution
Correct answer: A. no change
1. Let salary = 100. After +25%: 125.
2. After -25% on 125: 125 * 0.75 = 93.75.
3. Decrease from 100 is 6.25.
4. So net change is a 6.25% decrease.
5. The two equal percent changes do NOT cancel.
_Source: SSC CGL Quantitative Aptitude (Percentages), R.S. Aggarwal style and standard practice_
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