1.

1). 41 kg2). 43 kg3). 44 kg4). 46 kg

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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