1. A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m Find the cost of white washing the wall, if the rate of white washing the wall is Rs 20 per m².
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Answer:
the area of the door= 2m* 1m= 2m
the area of the wall= 4.5*3.6= 16.2m
the area of the wall for white washing= 16.2-2= 14.2m
cost of white washing per meter= rupees 20
cost of white washing 14.2 m= 14.2*20= 284 rupees
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The final answer of this question is Rs. 284
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