A room is 4..8m long and 3.2m wide .its floor is to be constructed with square marble tiles 10×10cm.Find the number of tiles required to cover the floor and the cost of the tiles at rupees 18 per dozen.
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area of room=l*b
A=480*320
A=153600cm^2
area of each tile=s^2
A=10^2
A=100cm^2
tiles required= 153600/100
=1536 tiles
total dozens of tiles=1536/12
=128 dozen
cost= 18*128
=RS.2304
A=480*320
A=153600cm^2
area of each tile=s^2
A=10^2
A=100cm^2
tiles required= 153600/100
=1536 tiles
total dozens of tiles=1536/12
=128 dozen
cost= 18*128
=RS.2304
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