The fifth term of a geometric series is 12 and the eighth term of the series is 96.
Find the common ratio.
Find the first term of the series.
The sum of the first 20 terms, giving your answer to the nearest whole number.
Practise Edexcel A Level Maths 3.4 Geometric Series with exam-style questions for A Level Maths. 27 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.