Multiple choice

8% of all the people of a particular country invest in the stock market. If 40% of those who invest in the stock market do not own a private jet, then what percentage of the country's population owns a private jet?

  1. 3.2%

  2. 5.2%

  3. 4.8%

  4. 4.5%

  5. 5%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

8% of the population invests. 40% of those who invest do not own a jet, meaning 60% of those who invest do own a jet. So, 60% of 8% = 0.60 * 0.08 = 0.048, which is 4.8%.

AI explanation

Assume the total population of the country is 100 for easy calculation. 8% of the population invests in the stock market, meaning 8 people invest. The question then implies that the remaining percentage of the stock market investors own a private jet, so 100% minus 40% equals 60% of those investors. Since 60% of 8 is 4.8, exactly 4.8% of the country's population owns a private jet.

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