The area of a square is 4096 sq cm. Find the ratio of the breadth and the length of a rectangle whose length is twice the side of the square and breadth is 24 cm less than the side of the square.

Mensuration 07/02/2021

A. 18 : 5
B. 7 : 16
C. 5 : 14
D. None of these

Let the length and the breadth of the rectangle be l cm and b cm respectively. Let the side of the square be a cm.

a2 = 4096 = 212
a = (212)1/2 = 26 = 64
L = 2a and b = a – 24
b : l = a – 24 : 2a = 40 : 128 = 5 : 16

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