Each term is half the previous term 3 ÷ 2 = 1.5 Answer: 1.5 or 1 1/2 or 3/2

Each term is half the one before: first term 48, ratio 1/2. nth term = 48 × (1/2)ⁿ⁻¹ 48 = 96 × 1/2, so this is 96 × (1/2)ⁿ Answer: 96 × (1/2)ⁿ

0580/41 Oct/Nov 2025, Question 20: Sequences

Cambridge IGCSE Mathematics 0580 · Paper 41 (Extended) · Calculator · 3 marks

The question, in short

The sequence 48, 24, 12, 6, 3 halves each time. Find the next term and the nth term.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Find the next term.

Answer1.5 or 1 1/2 or 3/2

Find the nth term.

Answer96 × (1/2)ⁿ

Stuck on a step? Read the free lesson: Exponential Sequences

Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.