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Question
225 square shaped mosaic tiles, area 1 square decimeter exactly cover a square shaped verandah. How long is each side of the square shaped verandah?
Solution
Area of one tile = 1 sq.decimeter
Area of 225 tiles = 225 sq.decimeter
225 square tiles exactly cover the square shaped verandah.
∴ Area of 225 tiles = Area of the verandah
Area of the verandah = 225 sq.decimeter
side × side = 15 × 15 sq.decimeter
side = 15 decimeters
Length of each side of verandah = 15 decimeters
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