Two numbers X and Y are respectively 30% and 35% less than a third number Z . By what percentage is the number Y less than that of the number X?

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Accepted Answer

Let Z = 100, X = 100 - 30 = 70 Y = 100 - 35 = 65 ∴ Y is less by X = (70 - 65)/70 x 100% = 5/70 x 100% = 71/7 %

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