The second term of a geometric series is 100 and the fifth term of the series is 12.5.
Find the common ratio.
Find the first term of the series.
Find the sum of the first 8 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.