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A person's salary was decreased by 50 and subsequently increased by...

This question belongs to Arithmetic Ability Profit And Loss
Profit and Loss
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A person's salary was decreased by 50% and subsequently increased by 50% and then again increased by 100%. How much percentage does he loss or gain?

Answer & Solution
Correct Answer: Option B
$$\eqalign{ & {\text{Let salary}} = 100 \cr & {\text{Then, }}100 \times \frac{{50}}{{100}} \times \frac{{150}}{{100}} \times \frac{{200}}{{100}} = 150\% \cr & {\text{Gain}} = 150 - 100 = \boxed{50\% } \cr} $$
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