Question

There are less than 50 students in the class. Today, only 97.5% of the class is here. How many students are in this class?

Answer 1

Answer:

the $100\%$ of students in the class are $40$ students  

the  $97.5\%$ of students here in class today are $39$

Step-by-step explanation:

Let

x-------------> total students in the class

y------------- >number of the students here in class

so

$y=0.975x$

we know that

$x< 50$

the interval solution for x is all whole numbers belong to the interval

$[0,49]$

 the solution will be a number belonging to the interval  $[0,49]$ such that when multiplying by $97.5\%$ it gives me a whole number 

see the attached excel table 

the $100\%$ of students in the class are $40$ students  

the  $97.5\%$ of students here in class today are $39$