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Lindalin96go
Answered

in a class of 24 students reads physics, 21 reads mathematics and 9 reads both subjects.if each student reads at least one of the two subjects. find the number of students in the class​

Answer :

45 students. Is the answer
Abidemiokingo

The number of students in the class​ is 36 students

Let the total number of people that read physics be n(P)

Let the total number of people that read Mathematics be n(M)

Let the number of people that read both subjects be n(PnM)

The total number of students in the class will be represented as n(PUM)

Based on the set formula

n(PUM) = n(P) + n(M) - n(PnM)

n(PUM) = 24 + 21 - 9

n(PUM) = 45 - 9

n(PUM) = 36

Hence the number of students in the class​ is 36 students

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