Question

6.
7.
Find the perimetel ot Teildiyle WILT
The length and breadth of a rectangular piece of land are in the ratio of 5: 3. If the
total cost of fencing it at the rate of 48 per metre is 19,200, find its length and
breadth.
A wire is in the shape of a square of side 20 cm. If the wire is bent into a rectangle
of length 24 cm, find its breadth
its length and b = its breadth; find :
8.​

Answer 1

Answer:

Step-by-step explanation:

2(5x + 3x) = 400

8x = 400/2

8x =200

x=200/8

x=25

length= 5*25= 125cm

breadth = 3*25 = 75cm

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perimeter of square = 4*20= 80

perimeter of rect. =2(L+B)

80=2(24+B)

80/2=24+B

40-24=B

B= 16cm

Answer 2

Step-by-step explanation:

the ratio of land =5:3

let length = 5x

breadth =3x

now.

2(5x+3x) = 400

8x = 400/2

8x =200

x = 200/8

x = 25

length = 5×25 = 125

breadth = 3×25 = 75

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side of a square = 20

perimeter of square = 4×20 = 80cm

length of a rectangle = 24

perimeter of a rectangle = 2(l+b)

breadth = 80/2-24

b = 40-24 =16