Question

the length and breath of a rectangular field are in the ratio 7:4. if its perimeter is 440 m find its length and breath

Answer 1

let length be 7x
and breadth be 4x
according to question
2(7x+4x )=440
2(11x)=440
22x=440
x=440/22
x=20
length = 7x
= 7*20=140
breadth=4x
=4*20
= 80

Answer 2

★ Hi , there !!★


let the length and breath of same ratio



that is " x "



now ,



perimeter of rectangle = 2 ( l + b )



length = 7 x


breath = 4 x



440 = 2( 7x + 4x )



2( 11x )= 440


22x = 440


x = 20



length of rectangle = 7 × 20

=> 140m


and breath of rectangle = 4x = 4 × 20

=> 80 m



hope it helps !!



thanks !!



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