Question

if the ratio between the length and perimeter of a rectangular plot is 1 : 3 then the ratio between the length and breadth of the plot is​

Answer 1

Answer:

let length of rectangle be 'l'm, breadth be 'b'm.

p

l

=

3

1

2(l+b)

l

=

3

1

3l=2l+2b

l=2b

∴

b

l

=

1

2

therefore required ratio is 2:1

Answer 2

Answer:

Let the length be x.

Therefore, perimeter = 3x

since

3x = 2(x +b)

3x = 2x + 2b

x = 2b

ratio = length:breadth

=x : b

=2b : b

=2:1

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