Placement tests are often necessary prerequisites for admittan | 📣 Quiz Masters 🇬🇧

Placement tests are often necessary prerequisites for admittance to schools.

Answer: The unnecessary word(-s) here is (are) either < ...necessary... > or < ...prerequisites... > .
TIP: Both necessary and prerequisites refer to a "requirement". Either word can be removed from the sentence.

Placement tests are often necessary prerequisites for admittance to schools.
OR
Placement tests are often necessary prerequisites for admittance to schools.