Question 968960
Let the width be x.
Then the length is (3x+4).
Perimeter=2(length+width)
Plugging in the values we get,
2(3x+4+x)=72
2(4x+4)=72
8(x+1)=72
x+1=9
x=8 metres
The width of the garden in 8 metres.
The length of the garden is 28 metres.