Question

a floor of a building consists of 3000 tiles which are square shapes and its sides is 45 cm find the total cost of polishing the floor at rupees 4 per meter square !!?

Answer 1

A floor of a building consists of 3000 tiles which are square shapes and its sides is 45 cm
side of one tile is 45cm
so area of one tile=45*45
                             =2025cm²
area of the floor=2025*3000
                          =6075000cm²/60750m²
cost of polishing the floor at rupees 4 per meter square 
=
60750*4
= rupeess 243000

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