Question

The Ratio of length and width of a door is
5:3 and it perimeter is 48 m. find the
measurement of doors . Find length
& breadth of door ​

Answer 1

Answer:

let length and breadth be 5x and 3x. By formula for perimeter,

2(5x+3x)=48

16x=48

x=3

L= 5×3=15

B=3×3=9

15m and 9m

Answer 2

ɦεყ! ɱαƭε, ყσµɾ αɳรωεɾ เร ɓεℓσω :

It is given that,

It is given that,Length and breadth of rectangular piece of land are in the ratio = 5:3.

Cost of fencing = ₹19,200,

Rate = ₹48 per metre.

We know that,

We know that,Perimeter of rectangular piece of land,

= 19,200/48=400 m.

Consider length = 5x.

Consider length = 5x.Breadth = 3x,

Consider length = 5x.Breadth

= 3x,So the perimeter = 2(l+b)

Substituting the values,

400=2(5x+3x)

By further calculation,

400=2(8x)

400=2(8x)400=16x

So we get,

So we get,x=400/16=25.

Length = 5x=5×25=125 m.

Breadth = 3x=3×25=75 m.

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