The flowchart represents an algorithm to calculate grades. [Figure showing flowchart]

Mark scheme

Marking points from the official mark scheme (May/June 2025). The mark or mark type is shown in brackets.

1. [3] (a) One mark for each correct column Score Grade OUTPUT 21 D You achieved a D 46 C You achieved a C 63 C You achieved a C 91 C You achieved a C 12 D You achieved a D Candidates can be awarded all three marks if they have provided only the correct first row.
2. [1] (b) Change the decision in the first decision box to IS Score >= 80 ?
3. [1] (b) Change the decision in the last decision box to IS Score >= 40 ?
4. [1] (b) Change process box from Grade ← "C" to Grade ← "A"
5. [1] (b) Change process box from Grade ← "A" to Grade ← "C"
6. [1] (b) Add output box instructing users to input score or input -1 before the input box // initialising a counter // incrementing counter.
7. [1] (b) Add decision box for loop with exit condition.
8. [1] (b) Correct arrows to show looping