Question

The ratio of the length and breadth of a
field is 7 : 4. If the length of the field is
280 m, find its breadth.​

Answer 1

Answer:

length by breth is 7:4 and

l=280

so b=160

Answer 2

Step-by-step explanation:

Given:-

• The ratio of the length and breadth of the rectangular field are in the ratio of 7 : 4.
• The perimeter of the rectangular field is 280m.

To find:-

• We have to find the length and breadth of the rectangular field ?

Solution:-

Let the length of the rectangular field be 7x and breadth be 4x.

Formula to be used:-

• Perimeter of rectangle = 2(l + b)

By substituting the values in the formula we get,

→ $\sf{2(l\ +\ b)\ =\ 280}$

→ $\sf{2(7x\ +\ 4x)\ =\ 280}$

→ $\sf{2(11x)\ =\ 280}$

→ $\sf{22x\ =\ 280}$

→ $\sf{x\ =\ \cancel \dfrac{280}{22}}$

→ $\sf{\red{\underline{\boxed{\bf x\ =\ 12.72\ =\ 13.}}}}\bigstar$

So here:-

→ Length = 7x = 7 × 13 = 91m.

→ Breadth = 4x = 4 × 13 = 52m.

$\therefore$ The required Length is 91m and Breadth is 52m.