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icd Is 8000 cm5: The internal measures of a cuboidal room are 12mx8mx4m. Find thenst of whitewashing all four walls of a room, if the costof white washing ist S penWhat will be the cost of white washing if the celing of the room is also whitewashet |
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Answer» 2(l+b)h = LSA2(12+8)4 =2(20)4 = 40*4 = 160m²cost of whitewashing 4 walls =160*8 = Rs 1280area of 5 walls = LSA+ l*b = 160 + (12*8) = 160 + 96 = 256m²cost of whitewashing vd ceiling = Rs 1280 +(96*8) = Rs 1280 + 768 = Rs 2048 |
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