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1). 41 kg2). 43 kg3). 44 kg4). 46 kg |
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Answer» Given data - Average weight of Sunil and Ravi = 45 kg Weight of Sunil and Ravi = 45 × 2 Weight of Sunil and Ravi = 90 kg- - - (1) & Average weight of Ravi and Pranit = 41 kg Weight of Ravi and Pranit = 41 × 2 Weight of Ravi and Pranit = 82 kg- - - - (2) & Average weight of A & C = 42 kg Weight of Sunil and Pranit = 42 × 2 Weight of Sunil and Pranit = 84 kg- - - - (3) ADDING results (1), (2) & (3) - Weight of Sunil and Ravi + Weight of Ravi and Pranit + Weight of Sunil and Pranit = 90 + 82 + 84 ⇒ 2 × Weight of Sunil + 2 × Weight of Ravi + 2 × Weight of Pranit = 256 kg ⇒ 2(Weight of Sunil + Weight of Ravi + Weight of Pranit) = 256 kg ⇒ Weight of Sunil + Weight of Ravi + Weight of Pranit = 128 kg - - - - (4) Subtracting result (2) from result (4) - (Weight of Sunil + Weight of Ravi + Weight of Pranit) - (Weight of Ravi + Weight of Pranit) = 128 - 82 ∴ Weight of Sunil = 46 kg |
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