The lenght,breadth and height of a room are 5m, 4m and 3m respectively. find the cost of white washing the walls of the room and the ceiling at the rate € 7.50 per m2
vedant2380:
its 555
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area for white washing is = area of 4 walls + area of ceiling
= 2( l+b)×h + lb
= 2×9×3 + 5×4
= 54+20
= 74 m square
rate of white washing = €7.5
cost of white washing = 74 × 7.5
= € 555
= 2( l+b)×h + lb
= 2×9×3 + 5×4
= 54+20
= 74 m square
rate of white washing = €7.5
cost of white washing = 74 × 7.5
= € 555
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