CAIE P1 2011 November — Question 2

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2011
SessionNovember
TopicGeometric Sequences and Series

2 The first and second terms of a progression are 4 and 8 respectively. Find the sum of the first 10 terms given that the progression is
  1. an arithmetic progression,
  2. a geometric progression.