Question

On a particular day, out of 40 students in a class 8 were absent. What percentage of the students were present?​

Answer 1

Step-by-step explanation:

$\frac{x}{100} \times 40 = 8 \\ \frac{x}{100} = \frac{8}{40} \\ \frac{x}{100} = \frac{1}{5} \\ x = 100 \times \frac{1}{5} \\ x = \frac{100}{5} \\ x = 20 \\ the \: absent \: \% = 20\%$

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Answer 2

Step-by-step explanation:

Total number of students = 40

Absent students = 8

Present students = Total students - Absent students

= 40 - 8 = 32

Percentage of students present = Present students/Total students × 100

= 32/40 × 100

= 0.8 × 100

= 80%