The length,breadth and height of a room are 6m, 4m and 3m. Find the cost of white washing the room at the rate of rupees 12 per cm2.
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Since Area of four walls of room = 2(l+b) * h
=) A = 2(600+400) * 300 cm^2
=) A = 2*1000*300 cm^2
=) A = 6*10^5 cm^2
Since 1 cm ^2 cost = Rs 12
Hence A cost =Rs 12 * 6*10^5
= Rs 7200000.
Hope it's helpful to u.
=) A = 2(600+400) * 300 cm^2
=) A = 2*1000*300 cm^2
=) A = 6*10^5 cm^2
Since 1 cm ^2 cost = Rs 12
Hence A cost =Rs 12 * 6*10^5
= Rs 7200000.
Hope it's helpful to u.
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