Question

the length is 4 times of breadth the perimeter 1400 meter what is the length and breadth

Answer 1

Answer:

B = 280 and L = 1120

Step-by-step explanation:

Let length be L and breadth be B

L = 4B and L+B = 1400

4B + B = 1400, 5B = 1400

B = 280 m

L = 4* 280 = 1120 m

Answer 2

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$\color{red}\huge{\underline{\underline{\mathfrak{Question:-}}}}$

If the length is 4 times of breadth and the perimeter of rectangle is 1400 m. Then, find the length and breadth.

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$\color{blue}\huge{\underline{\underline{\mathfrak{Answer}}}}$

⠀⠀${\pink{\bold{\text{Length=560 m}}}}$

⠀⠀${\pink{\bold{\text{Breadth=140 m}}}}$

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$\color{orange}\huge{\underline{\underline{\mathfrak{Solution:-}}}}$

⠀⠀${\red{\bold{\text{Given:-}}}}$

• Length is 4 times of breadth.
• Perimeter is 1400 m.

⠀⠀${\red{\bold{\text{To find:-}}}}$

• Length and breadth of rectangle.

${\green{\bold{\text{Now}}}}$

${\blue{\bold{\text{Let the breadth of rectangle be x m}}}}$

${\pink{\bold{\text{Then according to question}}}}$

${\blue{\bold{\text{The length will be 4x}}}}$

${\green{\bold{\text{Now}}}}$

$\star$$Perimeter\:of\:rectangle = 2\left(l+b\right)$

$\implies$1400=2(4x+x)

$\implies$1400=2(5x)

$\implies$1400=10x

$\implies$$\frac{1400}{10}$=x

$\implies$140 m=x

And 4x=4×140

⠀⠀⠀⠀ =560 m

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Hope it helps