If the ratio is 2:1, nitrous oxide fraction is what percent?

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Multiple Choice

If the ratio is 2:1, nitrous oxide fraction is what percent?

Explanation:
A 2:1 ratio means two parts nitrous oxide for every one part oxygen. The total parts are 3, so nitrous oxide makes up 2 of those parts. As a fraction, that’s 2/3, and converting to a percentage gives (2/3) × 100 = 66.7%, typically written as 66%. The leftover portion is 1/3, which is about 33% oxygen.

A 2:1 ratio means two parts nitrous oxide for every one part oxygen. The total parts are 3, so nitrous oxide makes up 2 of those parts. As a fraction, that’s 2/3, and converting to a percentage gives (2/3) × 100 = 66.7%, typically written as 66%. The leftover portion is 1/3, which is about 33% oxygen.

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