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**A. 1 : 96**

B. 1 : 48

C. 1 : 84

D. 1 : 68

Let the length and the breadth of the rectangle be 4x cm and 3x respectively.

(4x)(3x) = 6912

12×2 = 6912

x2 = 576 = 4 * 144 = 22 * 122 (x > 0)

=> x = 2 * 12 = 24

Ratio of the breadth and the areas = 3x : 12×2 = 1 : 4x = **1: 96.**

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