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An iron beam is 9 m long, 40 cm wide and 20 cm high. If 1 cubic metre of iron weighs 50 kg, what is the weight of the beam? A. 56 kg B. 48 kg C. 36 kg D. 27 kg |
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Answer» We know that, Volume of a cuboid = Length × Breadth × Height = 9 × 0.4 × 0.2 = 0.72 m3 Therefore, Weight = 0.72 × 50 = 36 kg |
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