Arithmetichard · Past Paper
A shopkeeper sells an article at a profit of 20%. If he had bought it for 10% less and sold it for Rs. 30 less, he would have gained 25%. Find the CP.
ARs. 400
BRs. 500
CRs. 600
DRs. 450
✓ Correct Answer: A — Rs. 400
Let CP = x. SP1 = 1.2x. New CP = 0.9x. New SP = 1.125x (as 1.25 * 0.9 = 1.125). 1.2x - 1.125x = 30 => 0.075x = 30 => x = 400.
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