(a) The area of a room is 15 sq m (1 sq m = 10,000 sq cm). How many tiles
of length 30 cm and breadth 20 cm will be needed to cover the floor?
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7
Answer:
250
Step-by-step explanation:
Area of the Room = 15 sq. m = 150000 sq. cm
Area of 1 tile = 30 × 20 sq. cm = 600 sq. cm
No. of tiles = 150000 ÷ 600 = 250
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