The breadth of a rectangular field is 60% of its length . If the perimeter of he field is 800 m. what is the area of the field ?
Let length = `x` metres , Then breadth =` (60/100 x)` meres =` ((3x)/(5))` metres
perimetre = `[2(x + (3x)/(5))]` m = `((16x)/(5))` m.
`:.` `hArr(16x)/(5) = 800`
`hArr x = ((800 xx 5)/(16))` = 250.
So, length = 250 m, breadth = 150 m.
`:.` Area = (250 x 150) `m^2` = 37500`m^2`
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