Question

On a wall of dimensions 10.5 m long and 8.5 my wide,a square shaped wall poster is struck at the centrear whose side is measured is 2.5 m. If the remaining part is to be painted pink colour costing rupees 12 per sq. my, how much does it cost ?

Answer 1

$area \: of \: poster \: \: = 2.5 \times 2.5 \: sq.m \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 6.25 \: sq.m \\ \\ area \: of \: wall \: = 10.5 \times 8.5 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 89.25 \: sq.m \\ \\ area \: of \: wall \: to \: be \: painted \: = (89.25 - 6.25)sq.m \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 83.00 \: sq.m \\ \\ cost \: of \: painting \: = 83 \times 12 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = rs.996 \\ \\ = > thank \: you$