a door of length 2m and breadth 1m and a window of length 1m and breadth 0.5m are fitted in a wall 4.5m in length and 4m in breadth. find the cost of washing the wall at the rate of rs 20 per m2.
anshikapriya:
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Answered by
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• Area of door=
².
________________________________
• Area of wall with door =
².
________________________________
• Area of wall without door= ².
².
____________________________
• Cost of white washing the wall
Rs. 28.4
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