A mining operation extracts gold from a specific site. The mass of gold extracted in the first month is aaa kg, and the mass extracted in each subsequent month is a constant fraction rrr of the mass extracted in the previous month.
Given that:
find, for this operation,
the common ratio, rrr,
the mass extracted in the first month, aaa.
Practise Edexcel A Level Maths Sequences and Series with exam-style questions for A Level Maths. 100 questions covering 3.1 Arithmetic Sequences, 3.2 Arithmetic Series, 3.3 Geometric Sequences, 3.4 Geometric Series, 3.5 Sum to Infinity, 3.6 Sigma Notation, 3.7 Recurrence Relations, and 3.8 Modelling with Series, 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.