【参考答案】
翻译：正方形S和长方形R周长相等.若长方形长宽之比是2:3,则长方形与正方形面积之比是多少?
设长方形长宽分别是2k和3k,则正方形边长是(2k+3k)×2÷4=2.5k
于是,二者面积比是：2k×3k/(2.5k)^2=6/(25/4)=24:25
答案B正确.
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Gmat The perimeters of square region S and rectangular regio
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