Answer:
Length of the door\[=\text{2 m}\] Breadth of the door \[=\text{1 m}\] \[\therefore \] Area of the door \[=l\times b=2\times \text{1 }{{\text{m}}^{\text{2}}}\] \[\text{= 2 }{{\text{m}}^{\text{2}}}\] Length of the wall \[=\text{4}.\text{5 m}\] Breadth of the wall \[=\text{3}.\text{6 m}\] \[\therefore \] Area of the wall \[=l\times b=4.5\times 3.\text{6 }{{\text{m}}^{\text{2}}}\] \[\text{=16}\text{.20 }{{\text{m}}^{\text{2}}}\] \[\therefore \] Area of the wall excluding door \[\text{=16}\text{.20 }{{\text{m}}^{\text{2}}}\text{- 2}{{\text{m}}^{\text{2}}}\] \[\text{= 14}\text{.20 }{{\text{m}}^{\text{2}}}\] \[\therefore \] Cost of white washing the wall = ` \[\text{14}\text{.20}\times 20\] = ` 284 Hence, the cost of white washing the wall is ` 284.
You need to login to perform this action.
You will be redirected in
3 sec