The Length breadth and height of a room are 5 metre 4 metre and 3 metre respectively find the cost of whitewashing the walls of the home and the selling @ 7.50 per metre square
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Answer:Breadth of a room= 4 metre
Length of a room=5 metre
Height of a room=3 metre
Surface Area= Area of roof+lateral surface are
Lb+2h[L+b]
5*4+2*3[5+4]
20+54
74metre square
Cost of White washing=Rs.7.50*74=Rs.555
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