Question

a rectangular ground is 125 M long and contains a hectare. it consists of a walk to metre 2.5 M wide surrounding a Grass plot find the area of the walk

Answer 1

Answer 1000m^2

Step-by-step explanation:

Area of ground=l×b

10000=125×b

b=80m

Now length of the inner side=125-2.5-2.5=120m

and similarly breath=75m

Now area of the walk=10000-120×75

10000-9000

1000m^2

Answer 2

The area of the walk is 1000 square meter.

Step-by-step explanation:

Given : A rectangular ground is 125 M long and contains a hectare. It consists of a walk to meter 2.5 M wide surrounding a Grass plot.

To find : The area of the walk ?

Solution :

A rectangular ground is 125 M long and contains a hectare.

The length of the ground is l=125 m

The area of the ground is A=1 hectare = 10000 m².

The area of the rectangular garden is $A=l\times b$

$10000=125\times b$

$b=\frac{10000}{125}$

$b=80$

The breadth is 80 meter.

It consists of a walk to meter 2.5 M wide surrounding a Grass plot.

The length of the walk is l=125-2.5-2.5=120 m

The breadth of the walk is b=80-2.5-2.5=75 m

The area of the surrounding grass plot is $A=l\times b$

$A_1=120\times 75$

$A_1=9000\ m^2$

The area of the walk  is given by,

$A_2=A-A_1$

$A_2=10000-9000$

$A_2=1000\ m^2$

Therefore,  the area of the walk is 1000 square meter.

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