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A shopkeeper sells a table at a discount of 20% and earns a profit of 60%. If he sells the same table at 40% discount, then what will be his new profit percent?

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Additional Questions

If A/3 = B/2 = C/5, then what is the value of ratio (C + A)2 : (A + B)2 : (B + C)2 ?

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The cost price of 60 articles is same as the selling price of x articles. If there is a profit of 20%, then what is the value of x?

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If x2 + (1/x2 ) = 1, then what is the value of x48 + x42 + x36 + x30 + x24 + x18 + x12 + x6 + 1?

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