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in Perimeter and Area of Plane Figures by (35.6k points)
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One side of a square room is 4 m. If the cost of labour for laying 1 sq m of the floor is 35 rupees, what will be the total cost of labour?

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First we must find the area of the square room.

Area of the square room = length of side × length of side = 4 × 4 = 16

Therefore, the area of the square room is 16 sq m.

The labour cost of laying 1 sq m of flooring is 35 rupees. 

Therefore, the cost of laying 16 sq m of flooring is 16 × 35 = 560 rupees.

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