Question

If one-tenth of students of a class is absent . If the total attendance of the day is 126 .Then find the number of absent student

Answer 1

There are 12 students who are absent.

Step-by-step explanation:

Since we have given that

Total attendance of the day = 126

Part of students are absent = $\dfrac{1}{10}$

So, Number of absent student would be

$\dfrac{1}{10}\times 126\\\\=12.6\\\\=12$

Hence, there are 12 students who are absent.

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There are 800 students in a school. If 1/10 of the students were absent on a day, find the number of students that were present that day. Also find the fraction of students of the school that was present that day.

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Answer 2

The number of absent student = 14

Explanation:

Given : The total attendance of the day  = 126

Also, the one-tenth of students of a class is absent .

We write one tenth as $\dfrac{1}{10}$.

Let x be the total number of students in the class.

Absent students = $\dfrac{x}{10}$  (1)

According to the question we have,

Total students - Absent students = Attendance

$x-\dfrac{x}{10}=126\\\\ \dfrac{10x-x}{10}=126\\\\ \dfrac{9x}{10}=126\\\\ x=\dfrac{10\times126}{9}=140$

From (1) Absent students = $\dfrac{140}{10}=14$

Hence, the number of absent student = 14

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