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Important Formulas – Percentage

  Percentage Percent means for every 100 So, when percent is calculated for any value, it means that we calculate the value for every 100 of the reference value. percent is denoted by the symbol %. For example, x percent is denoted by x% x%=x/100 Example : 25%=25/100=1/4 To express x/y as a percent,we have x/y=(x/y×100)% Example : … Read more

Tense

 Tenses The English Tense System The text below are to lessons for each of the 12 basic English tenses. In each lesson we look at two aspects of the tense: Structure: How do we make the tense? Use: When and why do we use the tense?   Verbs come in three tenses: past, present, … Read more

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