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Question 12

Two numbers are respectively $$28\%$$ and $$70\%$$ of a third number. The percentage of the first number to the second is

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Let the third number be $$N$$. The first two numbers are $$0.28N$$ and $$0.70N$$. Their percentage ratio is $$\frac{0.28N}{0.70N}\times 100=40\%$$.

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