The area of a rectangle is thrice that of a square. If the length of the rectangle is 40 cm and its breadth is $$\frac{3}{2}$$ times that of the side pf the square, then the side if the square is :
A. 15 cm
B. 20 cm
C. 30 cm
D. 60 cm
Answer: Option B
Solution (By Examveda Team)
Let the side of the square be x cmThen, its area = x2 cm2
Area of the rectangle = 3x2 cm2
∴ 40 × $$\frac{3}{2}$$ × x = 3x2
⇔ x = 20 cm
This Question Belongs to Arithmetic Ability >> Area
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