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Class Illustrations with Short Tricks on Percentage Purity, Percentage Yeild || Determination of Fomula of Hydrocarbon || Combustion of Hydrocarbon || Sequential Reactions

Comprehension: Read the data given and answer the following questions: In a class of 60 students: 42 like Mathes, 32 like English, 12 like neither Maths nor English. Students who like only Maths from what percentage of the total number of students in the class?

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In a class, 15% of total number of students failed in Science, 25% of total number of students failed in Maths and 10% of total number of students failed in both. How much percentage of students passed in both Maths and Science?

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Percentage Purity || Percentage Yield || Class Illustrations with Short Tricks