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Math newspapers and
The number of people who subscribe to newspapers accounts for 3/4 of the whole school, and 9/4 subscribe to Chinese newspapers.

The number of subscribers to Chinese newspapers is 3/4*4/9= 1/3 of the whole school.

Mathematics newspaper is 5/8 of the subscription newspaper, and the whole school is 3/4*5/8= 15/32.

Language newspaper and mathematics newspaper * * * account for 1/3+ 15/32=77/96.

People who subscribe to newspapers account for 3/4 of the whole school.

77/96-3/4=5/96 people booked both.

***25 people

Then the number of students in the whole school is 25*96/5=480.