The total number of students at the party are 33 students.
What is a word problem?
A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.
For the given situation,
Number of girls wore mask = 7
Number of boys did not wore mask = 9
Total number of boys = 15
Number of students did not wear masks = 20
Number of boys wear mask = [tex]15-9[/tex]
⇒ [tex]6[/tex]
Number of girls did not wore mask = [tex]20-9[/tex]
⇒ [tex]11[/tex]
Thus the total number of students at the party are
⇒ [tex]7+6+9+11[/tex]
⇒ [tex]33[/tex]
Hence we can conclude that the total number of students at the party are 33 students.
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