a) 8.33%
b) 12.5%
c) 8.25%
d) 10%
Answer: d
Explanation: % Profit = $$\frac{{25}}{{100}}$$ = $$\frac{{120 + {\text{k}}}}{{880}}$$
k = 100
Net % profit = $$\frac{{100 \times 100}}{{1000}}$$ = 10%
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