Question

A rectangular park is next to a wall 15.5m of fencing is used to fence the 3 sides of the park length of the park and it's breadth is3.45m
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Answer 1

Correct Question:

A rectangular park is next to a wall 15.5 m of fencing is used to fence the remaining 3 sides of the park. If the wall is along the length of park and it's breadth is 3.45 m. Find the cost of converting the park with grass at Rs. 12.50 per sq m.

Answer:

The cost of converting the park with grass = Rs. 370.88

Step-by-step explanation:

Given:

• A rectangular park is next to a wall 15.5 m of fencing is used to fence the remaining 3 sides of the park.
• If the wall is along the length of park and it's breadth is 3.45 m.

To find:

• The cost of converting the park with grass at Rs. 12.50 per sq m.

Solution:

Here, we know that a rectangular park is next to a wall and 15.5 m of fencing is used to fence the remaining 3 sides of the park. So, one side of a rectangular park is next to wall i.e, the wall is along the length of park, so we will find perimeter by adding 3 sides of a rectangular park only.

• Perimeter = Length + Breadth + Breadth
• 15.5 = Length + 3.45 + 3.45
• 15.5 = Length + 6.9
• Length = 15.5 - 6.9
• Length = 8.6 m

Now, find the area

♦ Area of a rectangle = l × b

Where,

l is the length of a rectangle.

b is the breadth of a rectangle.

• Area of a rectangle = 8.6 × 3.45
• Area of a rectangle = 29.67 m²

Finally,

• The cost of converting the park with grass per 1 m² = Rs. 12.50
• The cost of converting the park with grass per 29.67 m² = Rs. 12.50 × 29.67
• The cost of converting the park with grass per 29.67 m² = Rs. 370.875

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