Arithmetichard · Past Paper
By selling 100 pens, a shopkeeper gains the selling price of 20 pens. Find his gain %.
A20%
B25%
C15%
D10%
✓ Correct Answer: B — 25%
100SP - 100CP = 20SP => 80SP = 100CP. Gain% = (20/80)*100 = 25%.
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