Cost of Levelling.

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Presentation transcript:

Cost of Levelling

Cost of Levelling Area of the shape What is Levelling? Levelling is covering the surface inside the boundary which is nothing but area of the shape. Cost of Levelling Area of the shape

Ans : Cost of levelling rectangular garden is Rs 37,500 Example 1: Find the cost of levelling a rectangular garden of length 10m and breadth 25m at the rate of Rs 150 per sq m Solution: Given: Length of a rectangular garden = 10 m Breadth of a rectangular garden = 25 m To find: Cost of levelling a rectangular garden To find the cost of levelling, we need to determine the area of a rectangle. Area of a rectangle = length x breadth = 10 x 25 = 250 Cost of levelling 1 sq m = Rs 150 Cost of levelling 250 cm = 150 x 250 = Rs 37,500 Ans : Cost of levelling rectangular garden is Rs 37,500

Ans : Cost of levelling a square flower garden is Rs 6250 Example 2:Find the cost of levelling a square flower garden of side 25 m at the rate of Rs 10 per metre. Solution: Given: Side of a square flower garden = 25 m To find: Cost of levelling a square flower garden To find the cost of levelling, we need to determine the area of square. Area of a square = s x s = 25 x 25 = 625 m2 Cost of levelling 1 m2 = Rs10 Cost of levelling 625 m2 = 625 x 10 =Rs 6250 Ans : Cost of levelling a square flower garden is Rs 6250

Ans : Cost of levelling the right triangular ground is Rs 500 Example 3: In a right triangular ground, the sides adjacent to the right angle are 20 m and 10 m. Find the cost of levelling the ground at Rs 5 per sq.m. Solution: Given: Base of the right triangle = 10m Height of the right triangle = 20m To find: Cost of levelling a right triangular garden To find the cost of levelling, we need to determine the area of triangle. Area of a triangle = x b x h 5 x 10 x 20 Divide 2 and 6 by 2 = = 5 x 20 = 100 m2 Cost of levelling 1 m2 = Rs 5 Cost of levelling 100 m2 = 100 x 5 = Rs 500 Ans : Cost of levelling the right triangular ground is Rs 500

Try these Find the cost of levelling a rectangular garden of length 20 cm and breadth 50 cm at the rate of Rs 15 per sq.cm.