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If a% of a + b% of b = 2% of ab, then what percent of a is b?
25%
50%
75%
100%
$$\dfrac{a}{100}\times a+\dfrac{b}{100}\times b\ =\ \dfrac{2}{100}\times ab$$
$$a^2+b^2=2ab$$
$$\left(a-b\right)^2=0$$
a = b
Thus, a is 100% of b.
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