The average weight of 8 boys is increased by 1.5 kg when one of the boys, who weights 65 kg, is replaced by a new boy. The weight of the new boy is-

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The average weight of 8 boys is increased by 1.5 kg when one of the boys, who weights 65 kg, is replaced by a new boy. The weight of the new boy is-

A70 kg

B74 kg

C76 kg

D77 kg

rahul ? Jan 15 '2020 at 9:14

Correct answer is: 77 kg

Explanation:

Total weight increased = \(( 8 \times 1.5 )\text{ kg}\) = 12 kg.
Weight of new man = 65 + 12 = 77 kg

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Correct answer is: 77 kg Explanation: Total weight increased = \(( 8 \times 1.5 )\text{ kg}\) = 12 kg. Weight of new man = 65 + 12 = 77 kg rahul ? answered Jan 15 '2020 at 9:14 All Comments

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