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1.7 D: Sequences and series

1.7 D: Sequences and series

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Question 178

Harry saved money each month in 2022. In January 2022 he saved £40. In April 2022 he saved £55.

a.

Given that the amount he saved each month is modelled by an arithmetic series, find the total amount Harry saved in 2022.

[3]
b.

Given instead that the amount he saved each month is modelled by a geometric series, find the total amount Harry saved in 2022.

[3]
Markscheme

1.7 D: Sequences and series Questions

  1. A Level
  2. /Maths
  3. /1.7 D: Sequences and series

308 exam-style questions on AQA A Level Maths 1.7 D: Sequences and series, covering 1.7.1 Binomial expansion, 1.7.2 Types of sequence (A-level only), 1.7.3 Sigma notation (A-level only), 1.7.4 Arithmetic sequences and series (A-level only), 1.7.5 Geometric sequences and series (A-level only), and 1.7.6 Sequences and series in modelling (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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