Q49
The area of a rectangle is thrice 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
The area of a rectangle is thrice that of a square. The length of the rectangle is 20 cm and the breadth of the rectangle is times that of the side of the square. The side of the square, (in cm) is
A.
10
AnswerB.
20
C.
30
D.
60
Answer: Option A
Solution
Answer: Option A
Solution:
Let the side of square = a cmAccording to the question,
× b = 3a2
20 × = 3a2
a = 10 cm