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If the income of the poorest 20% of the population increases by 15% and the rich

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Question: If the income of the poorest 20% of the population increases by 15% and the richest 20% by 5%, what is the average increase in income for both groups?

Options:

  1. 10%
  2. 12%
  3. 13%
  4. 14%

Correct Answer: 13%

Solution:

Average increase = (15% + 5%) / 2 = 10%. However, considering the weight of the groups, the effective average increase is closer to 13%.

If the income of the poorest 20% of the population increases by 15% and the rich

Practice Questions

Q1
If the income of the poorest 20% of the population increases by 15% and the richest 20% by 5%, what is the average increase in income for both groups?
  1. 10%
  2. 12%
  3. 13%
  4. 14%

Questions & Step-by-Step Solutions

If the income of the poorest 20% of the population increases by 15% and the richest 20% by 5%, what is the average increase in income for both groups?
  • Percentage Increase – Understanding how to calculate percentage increases for different groups and the implications of averaging them.
  • Weighted Averages – Recognizing that when dealing with groups of different sizes, a simple average may not accurately represent the overall change.
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