The sides of a rectangle are in the ratio 5 : 4 and its perimeter is 90 cm. Find its length and breadth.
Let x be the common multiple.
Length = 5x
Breadth = 4x
Perimeter = 
90 = 2 (5x + 4x)
18x = 90
X = 5
Length = 5x = 25 cm
Breadth = 4x = 20 cm
12
The sides of a rectangle are in the ratio 5 : 4 and its perimeter is 90 cm. Find its length and breadth.
Let x be the common multiple.
Length = 5x
Breadth = 4x
Perimeter =
90 = 2 (5x + 4x)
18x = 90
X = 5
Length = 5x = 25 cm
Breadth = 4x = 20 cm