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If a compound has 25 percent A and 75 percent B what is the simple ratio A:B?

Answer and explanation

Correct answer: 1:3

The ratio A:B is 25:75. Dividing both terms by their highest common factor, 25, gives 1:3. In 1:2, B would be only twice A, whereas here B is three times A. Exam tip: write the percentages as a ratio and divide both terms by their HCF to obtain the simplest form.

Related tags

ChemistryChemical CombinationPercentage CompositionRatioSimple RatioLaws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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