SSC CPO SI and ASI Model Paper 7

Question : 149 of 200

Marks: +1, -0

The perimeter of a square is twice that of a rectangle. If the perimeter of the square is 72 cm and the length of the rectangle is 12 cm, what is the difference between the side of the square and the breadth of the rectangle?

9 cm
12 cm
18 cm
3 cm

Validate

Solution:

(2) Let 'a' be the side of square and'b' be the breadth of rectangle.Now4a = 72 cm
⇒a = 18 cm
Perimeter of rectangle = 72/2
= 36 cm

2(12 + b) = 36

⇒b = 6 cm
Required difference = a – b

= 18 – 6 = 12 cm

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