1)Nikhil wants to cover the floor of a room of 3m wide 5m long with square tiles. If each square tiles is of side 25cm, how many tiles are required to cover the floor?
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w=3m. L=5m
area of room=3×5
=15m
15m×100cm
=1,500cm
area of tiles=25cm×4
=100
tiles fit in room floor
1,500÷100
15 tiles fit in room floor
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