Mathematics: 2:20 hours The University Selection Test (Spanish: Prueba de Selección Universitaria or PSU) was a standardized test used for college admissions in Chile.

Since 2003 it has replaced the Prueba de Aptitud Académica (PAA) which had been in use since 1966.

The PSU consists of four sections: Spanish, mathematics, history and science.

It is required to take the math and Spanish portions of the test plus an elective one.

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