A marble tile measures 10 cm x 12 cm how many tiles will be required to cover a Wall of size 3M x 4 m
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Area of a tile= l×b
=12×10cm
=120cm
Area of a wall =l×b
=400cm× 300cm
=120000cm sq
No. of marbels required
=Area wall/Area of marbels
120000/120 reduced = 1000
= 1000 marbels are required
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