Question

Que15. If the ratio of the length and breadth of room is 5, 4. If its area
is 500 sq. m than find its length and breadth ?​

Answer 1

Step-by-step explanation:

Given that:

Length of a rectangle field =3x

Breadth of a rectangle field =2x

Area =3456 m2

3x×2x=3456 m2

6x2=3456 m2

x2=576 m2

x=24 m

Therefore, the length =72 m 

Breadth =48 m

Perimeter of the rectangular field =72+48=120 m

Cost of 1 meter =Rs.4

Cost of 120 meter =Rs.4×120=Rs.480.

This is the required solution

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Answer 2

Step-by-step explanation:

Let the length and breadth of the room= 5x and 4x(respectively)

Area of room= L X B

500m^2= 5x X 4x

500m= 20x

500/20= x

25m = x

L = 5x = 5×25= 125m

B = 4x = 4×25 = 100m