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A path 1 m wide runs outside a courtyard 8 m by 6 m. It is paved with square tiles of side 50 cm. How many tiles are needed?

Class 7Area of Paths and BordersPerimeter and Area

A32
B128
C320
D64

Step-by-Step Solution

Path =

10 \times 8 - 48 = 32 m^{2}

. One tile =

0.5 \times 0.5 = 0.25 m^{2}

. Tiles = 32 ÷ 0.25 = 128. (64 uses

0.5 m^{2}

per tile.)

Answer: B) 128

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