The statement '1 in 5 adults experience mental illness' implies what percentage?

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Multiple Choice

The statement '1 in 5 adults experience mental illness' implies what percentage?

Explanation:
The idea being tested is how to convert a phrase like "one in five" into a percentage. One in five means one part out of five equal parts, which is the fraction 1/5. To turn that into a percent, multiply by 100: 1/5 × 100 = 20%. So it represents 20% of adults who experience mental illness. The other percentages correspond to different fractions: 50% is one-half, 5% is one-twentieth, and 80% is four-fifths.

The idea being tested is how to convert a phrase like "one in five" into a percentage. One in five means one part out of five equal parts, which is the fraction 1/5. To turn that into a percent, multiply by 100: 1/5 × 100 = 20%. So it represents 20% of adults who experience mental illness.

The other percentages correspond to different fractions: 50% is one-half, 5% is one-twentieth, and 80% is four-fifths.

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