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the length .breadth. and height. of room are 5 CM 4 m and 3 m find cost of white washing the wall of room and ceiling @ 7.50 mt2 |
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Answer» HEY .. here is the answer... l = 5 cm b = 400 cm h=300 cm area of four walls = 2 h ( l + b) 2× 300 ( 5 + 400) 600 (405) = 243000 cm ^ area of celing = l x b 5 × 400 2000 cm ^ total area = 243000 + 2000 245000 cm^ = 2450 m ^ cost of white washing = 2450 × 7.50 = 18375 rs. hope it HELPS UU DEAR. ... |
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