Find the number of different arrangements of the 9 letters in the word ALGEBRAIC.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2024). The mark or mark type is shown in brackets.

1. [B1] Exact value must be seen. CAO.
2. [B1] Correct outcome/value for 1 identified scenario, accept unsimplified.
3. [M1] Add values of 3 correct scenarios, no incorrect/repeated scenarios.
4. [A1] If M1 not awarded, SC B1 for 105840 WWW.
5. [B1] Correct outcome/value for 1 identified scenario, accept unsimplified.
6. [M1] Add values of 3 correct scenarios, no incorrect/repeated scenarios.
7. [A1] If M1 not awarded, SC B1 for 105840 WWW.
8. [B1] Correct outcome/value for 1 identified scenario, accept unsimplified.
9. [M1] their 2(a), or correct, subtract values of 5 correct scenarios, no incorrect/repeated scenarios.
10. [A1] If M1 not awarded, SC B1 for 105840 WWW.