Question

The area of a rectangle is 1/2 that of a square. The length of the rectangle is 20 cm and the breadth of the rectangle is 3/2 times that of the side of the square. The side of the square, (in cm) is

A 32 cm Correct Answer Incorrect Answer
B 60 cm Correct Answer Incorrect Answer
C 45 cm Correct Answer Incorrect Answer
D 42 cm Correct Answer Incorrect Answer

Solution

Using the formula, Area = Length x Breadth & Area = side² = a² Side of a square = a cm Therefore, Area of rectangle = 1/2 x area of square ⇒ 20 x (3/2) x a = 1/2 x a² ⇒ a = (20 x 2 x 3)/(1 x 2) ⇒ a = 60 cm

Practice Next
×
×