Answers

2016-01-22T20:05:45+05:30
Area to be painted =2[(5*7)+(6*7)]-1*0.5
                              
                               =70+84-0.5
                               = 153.5
 cost of painting 1sq.m=90
                                     = 153.5*90
                                      =13815
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2016-01-22T20:15:56+05:30
Area including door= 2 (l + b) *h= 2(5+6)*7 = 154 m2
area of door = 1*0.5 =0.5
area to be painted = 154- 0.5 = 153.5 m2 cost of painting = 153.5*90 = Rs. 13815
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