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12. The cost price of an article is 30 percent lessthan its selling price. Find, the profit or theloss as percent. |
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Answer» Let SP = xthen according to question,CP = x - 30% of x= x- (30/100)× x=x-(3/10)×x= x-3x/10= 7x/10now as SP>CP therefore it is profitsoprofit = SP-CP= x- 7x/10= 3x/10profit % = (profit/CP) × 100= (3x/10/7x/10)× 100= (3x/10 × 10/7x)×100= 3/7 × 100 = 300/7 = 42.8 % |
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