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1). 50kg2). 55kg3). 60kg4). 40kg |
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Answer» Volume of water DISPLACED = (90 × 10 × 0.1) m3 = 90 m3 ⇒ Weight of 1800 MEN = Volume of water displaced × DENSITY of water ⇒ 90 m3 × 1000kg/m3 = 90000kg ∴ Average weight of each men = 90000/1800 = 50kg |
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