Question

How much will it cost to make a gravel walk 3m wide around and inside a square Park whose atea is 48841m square at $5persq .metre

Answer 1

The cost to make a gravel walk 3m wide around and inside a square Park is Rs 13080

Solution:

Given that,

Area of square park = 48841 square meter

Find the length of side

$side = \sqrt{ area }\\\\side = \sqrt{ 48841}\\\\side = 221\ meter$

Find the area of walk path

3 m wide around and inside a square Park

221 - ( 3 + 3) = 215 meter

So, area inside the path is:

$Area = side^2\\\\Area = 215^2\\\\Area = 46225\ m^2$

Total area minus area inside path leaves area of path:

Area of path = 48841 - 46225

$Area\ of\ path = 2616\ m^2$

Cost is $ 5 per square meter

Therefore,

Cost to gravel the 3 m wide path is: 2616 x 5 = 13080

Thus cost to make a gravel walk 3m wide around and inside a square Park is Rs 13080

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Answer 2

Answer:

The cost to make a gravel walk 3m wide around and inside a square Park is Rs 13080

Solution:

Given that,

Area of square park = 48841 square meter

Find the length of side

\begin{gathered}side = \sqrt{ area }\\\\side = \sqrt{ 48841}\\\\side = 221\ meter\end{gathered}

side=

area

side=

48841

side=221 meter

Find the area of walk path

3 m wide around and inside a square Park

221 - ( 3 + 3) = 215 meter

So, area inside the path is:

\begin{gathered}Area = side^2\\\\Area = 215^2\\\\Area = 46225\ m^2\end{gathered}

Area=side

2

Area=215

2

Area=46225 m

2

Total area minus area inside path leaves area of path:

Area of path = 48841 - 46225

Area\ of\ path = 2616\ m^2Area of path=2616 m

2

Cost is $ 5 per square meter

Therefore,

Cost to gravel the 3 m wide path is: 2616 x 5 = 13080

Thus cost to make a gravel walk 3m wide around and inside a square Park is Rs 13080