Find the total number of students who appeared in the examination

UPSKILL MATH PLUS

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In an examination 40

%

of the students passed in Maths and 90

%

of students passed in Science while 10

%

students failed in both subjects. 400 students passed in at least one subject.

The total number of students who appeared in the examination is students.

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9. Find the total number of students who appeared in the examination