the length ,breadth, and height of a classroom are 12m,5m,3m respectively.find the cost of whitewashing the room (including ceiling) at Rs 3.50 per square meter?
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12×5×3 + 12×5 = Area to paint
180+60
240cmSq
cost = 240×3.5
840rs
AnshHMehta:
its wrong coz u need to subtract the area of the floor !
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