Question

class of 50 students, if only 30 students were present on a rainy day then what percentage of students were absent​

Answer 1

50-30
=20

20/50*100
= 40 %.

Answer 2

Answer:

Total number of students in the class= 50

Number of student present on a rainy day = 30

Number of students present that day = 50-30= 20

$percentage = \frac{20}{50} \times 100 \\ \\ = 20 \times 2 \\ \\ = 40\%$