a) 3 : 4
b) 4 : 3
c) 5 : 3
d) 4 : 5
Answer: b
Explanation:
$$\eqalign{
& {\text{20 w}} \times {\text{16}} = {\text{16 m}} \times {\text{15}} \cr
& {\text{20 w}} = {\text{15 m}} \cr
& {\text{4 w}} = {\text{3 m}} \cr
& \frac{{\text{m}}}{{\text{w}}} = \frac{4}{3} \cr
& {\text{Man}}:{\text{Women}} \cr
& \,\,\,\,\,\,4:3 \cr} $$
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