Question

1- A rectangular park's length is 2 times its breadth. If its perimeter is 60 meters, the length and
breadth of the park are meters and
meters, respectively. (7)
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Answer 1

Step-by-step explanation:

let the breadth of the park be x

so, the length of the park will be 2x

now,perimeter of the park=60 meters

*formula for perimeter=2(L+B)

60=2(2x+x)

60=2(3x)

60=6x

x=10 meters

therefore,

length=20 meters

breadth=10 meters

Answer 2

Correct Question :-

A rectangular park's length is 2 times its breadth. If its perimeter is 60 meters, the length and breadth of the park are meters and meters, respectively ___ and ___.

Answer :-

The Length and Breadth of Rectangular park is 20m and 10m respectively.

Step-by-step explanation:

To Find :-

• The length of park
• The breadth of park.

★ Solution

Given that,

• The length of the rectangular park is 2 times it's breadth.
• Perimeter of park is 60m.

Let us assume the length and breadth of rectangular park as (2x) and (x),

We know,

Perimeter of rectangle = 2(length + breadth),

∴ 2(2x + x) = 60

⇒ 2(2x + x) = 60

⇒ 2x + x = 60/2

⇒ 2x + x = 30

⇒ 3x = 30

⇒ x = 30/3

⇒ x = 10

The value of x is 10. According the question,

The length and breadth of park :-

• Length = 2x = 2*10 = 20m
• Breadth = x = 10m

Hence,

The length and breadth of the Rectangular park is 20m and 10m.