Multiple choice

Average weight of a team of 11 players was 65 kg. A player weighing 110 kg was replaced by a player of 80 kg. What is new average weight of the team?

  1. $58.5$ kg
  2. $60.45$ kg
  3. $61.6$ kg
  4. $62.3$ kg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Total weight change = 80 - 110 = -30 kg. New average = (11 * 65 - 30) / 11 = (715 - 30) / 11 = 685 / 11 = 62.27 kg, which rounds to 62.3 kg.

AI explanation

The net decrease in the total weight of the team is 110 minus 80, which is 30 kg. This decrease is distributed equally among the 11 players, so the average decreases by 30 divided by 11, which is approximately 2.7 kg. The new average weight is 65 minus 2.7, resulting in 62.3 kg.

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