AQA C2 2009 January — Question 8

Exam BoardAQA
ModuleC2 (Core Mathematics 2)
Year2009
SessionJanuary
TopicArithmetic Sequences and Series
8 The 25th term of an arithmetic series is 38 .
The sum of the first 40 terms of the series is 1250 .
  1. Show that the common difference of this series is 1.5 .
  2. Find the number of terms in the series which are less than 100 .
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