Edexcel C12 2018 June — Question 9

Exam BoardEdexcel
ModuleC12 (Core Mathematics 1 & 2)
Year2018
SessionJune
TopicGeometric Sequences and Series

9. A cyclist aims to travel a total of 1200 km over a number of days. He cycles 12 km on day 1
He increases the distance that he cycles each day by \(6 \%\) of the distance cycled on the previous day, until he reaches the total of 1200 km .
  1. Show that on day 8 he cycles approximately 18 km . He reaches his total of 1200 km on day \(N\), where \(N\) is a positive integer.
  2. Find the value of \(N\). The cyclist stops when he reaches 1200 km .
  3. Find the distance that he cycles on day \(N\). Give your answer to the nearest km .