Practise your exact GCSE paper

Ratio · non-calculator3 marks

£160 is split between music and sport in the ratio 3 : 5. Music gives away a quarter of its share. How much does music keep?

1. 160 × 3/8 = 60P1
2. 160 × 1/4 = 40P0
3. 60 − 40 = £20A0

Applying one quarter to the whole fund uses the wrong base.

Your mark1 / 3

Biology · explain3 marks

“It has less mitochondria so it has less energy to swim, so it is slower.”

• Not made: Mitochondria are sites of aerobic respiration.
• Made: Fewer mitochondria may release less energy for tail movement.
• Made: It may swim less effectively and be less likely to reach the egg.

Points made2 / 3

Paper 1 · Question 28 marks

1. Level 4Perceptive, detailed7–8
2. Level 3Clear, relevant5–6
3. Level 2Some understanding3–4
4. Level 1Simple, limited1–2

To reach level 4: explore what “bailiff” suggests, not just that the storm is forceful.