Question

The length of a rectangular floor is 20m, more than its breadth of the perimeter of the
is 280 m, what is its breadth?

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Answer 1

Step-by-step explanation:

let the breadth be 'x'

let the length be 'x+20'

now, we know perimeter of rectangle = 2(l+b)

• 2(x+x+20) = 280
• 2(2x+20)= 280
• 4x+40= 280
• 4x = 280-40
• 4x = 240
• x = 240/4
• x = 60
• so breadth is 60 cm
• and length is 60+20 cm
• 80cm

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Answer 2

$\huge\sf\red{♛Answer♛}$

Given :-

Length of rectangular floor is 20m more than its breadth

perimeter = 280m

To Find :-

Breadth of rectangular floor

Length of rectangular floor

Solution :-

Let Breadth = x

Length = x + 20m

Perimeter of rectangle = 2(l+b)

2(x+20+x) = 280m

2(2x+20) = 280m

4x + 40 = 280m

4x = 280m - 40m

4x = 240m

$x = \frac{240}{4}$

x = 60m

Hence, The breadth of rectangular floor is 60m

Length = x + 20m

60m + 20m = 80m

Hence, the Length of rectangular floor is 80m