Question

the length and the breadth of a rectangular feet are in the ratio 5 : 3 if its perimeter is 128 M find the dimension of the field

Answer 1

Let the length be "L" and the width "W"
We know that the ration is 5:3
Then, L/W = 5/3
Cross multiply:
==> 3L = 5W
==> L = (5/3)*W .......(1)
Also, it is given that the perimeter P is 32:
==> 2L + 2W = 32 .......(2)
Now substitute (1) in (2):
==> 2 (5/3)W + 2W = 32
==> (10/3)W + 2W = 32
==> (16/3)W = 32
Multiply by 3/16:
==> W = 32*3/16 = 6
==> W = 6 cm.
==> L = (5/3)w = (5/3)*6 = 10
==> L = 10 cm

Answer 2

answer is 960 m square for solution in picture