If 3% of (a + b) = 7% of (ab) and 5% of (a - b) = 4% of (ab) then what percentage of b is a?

If 3% of (a + b) = 7% of (ab) and 5% of (a - b) = 4% of (ab) then what

1.	If 3% of (a + b) = 7% of (ab) and 5% of (a - b) = 4% of (ab) then what percentage of b is a?
A.	\(\frac{{47}}{{23}}\%\)
B.	\(\frac{{23}}{{47}}\% \)
C.	\(\frac{{4700}}{{23}}\%\)
D.	\(\frac{{2300}}{{47}}\%\)
Answer» D. \(\frac{{2300}}{{47}}\%\)

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If 3% of (a + b) = 7% of (ab) and 5% of (a - b) = 4% of (ab) then what percentage of b is a?

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