Question

The area of a rectangle is thrice that of a square.The length of the rectangle is 20cm and the breadth of the reactangle is 3/2 times that of the side of the square.The side of the square

Answer 1

side of squre=s

area=s^2

for rectangle....

breadth=1.5s

length=20

area=l×b

3s^2=30s

s^2=10s

s^2-10s=0

s(s-10)=0

s=0 or s=10

s cant be 0

therefore....s=10cm

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