Question

2. The perimeter of a rectangular swimming pool is 154 m. Its length is 2.
twice its breadth. What are the length and the breadth of the pool?
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Answer 1

Answer:

let the breadth be x  thus the length will be 2x

then according to the formula then

2[x+2x]=154

3x=154/2

3x= 77

x=77/2 meter= breadth

that is 38.5m

length is 77 m

Answer 2

if b = x

then ,

L=2x

perimeter of rectangle = 2( L + B)

154m=2(2x+x)

154 m=2(3x)

154m=6x

154m/6=x

25.66=x

hope this helps you

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