Question
Average weight of a team of 10 persons is 30 kg. When
one more person joins the team, the average weight of the team increases by 3 kg. Find the weight of new personSolution
Sum of weights of 10 persons = 30 × 10 = 300 kg Sum of weights of 11 persons = (30 + 3) × 11 = 363 kg Weight of new person = 363 – 300 = 63 kg
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