Mathematics
Grade6
Easy

Question

In Tia class, 70% of the students completed an essay by the due date. There are 30 students in Tia class. How many completed the essay by the due date.

  1. 12
  2. 15
  3. 21
  4. 25

hintHint:

1. When a certain quantity is divided into 100 equal parts and a certain part of it is to be expressed in terms of the whole quantity, that portion is called as a percent, represented with a % sign.
2. Percentage students who completed essay by due date = number of students who completed essay by due date / Total students * 100.

The correct answer is: 21


    Given-
    Percentage students who completed essay by due date = 70%
    Total students = 30
    To find-
    Number of students who completed essay by due date
    Solution-
    We know that-
    Percentage students who completed essay by due date = number of students who completed essay by due date / Total students * 100
    ∴ 70 = number of students who completed essay by due date / 30 * 100
    ∴ 70 * 30 / 100 = number of students who completed essay by due date
    ∴ 21 = number of students who completed essay by due date
    Final Answer- Option 'c' i.e. '21' is the correct answer to the given question.

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