# C2 model answers may 2013

- Created by: sebastian parsons
- Created on: 24-05-13 23:26

First 81 words of the document:

CZ MAY 13

1. The first three terms ofa geometric series are

18,12 and p

respectively, where p is a constant.

Find

(a) the value of the common ratio of the series,

(1)

(b) the value ofp,

(1)

(c) the sum of the first 15 terms of the series, giving your answer to 3 decimal places.

(2)

ILL

d\) c.Grz

tLrk ? I =6

c) s,s = K(l:la.:) = *a++-

12-

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