Question 1 - A-Level Maths

Exam Board	Edexcel
Module	C12 (Core Mathematics 1 & 2)
Year	2019
Session	June
Topic	Geometric Sequences and Series

The 4th term of a geometric series is 125 and the 7th term is 8
1. Show that the common ratio of this series is \(\frac { 2 } { 5 }\)
2. Hence find, to 3 decimal places, the difference between the sum to infinity and the sum of the first 10 terms of this series.