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November 01, 2025, 10:23:28 am
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Author Topic: Number Patterns Qn  (Read 565 times)  Share 

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ammuzusak

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Number Patterns Qn
« on: October 31, 2010, 02:42:02 pm »
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Hey guys

This is from the 2007 exam, I understand it but not really why you have to use S7 instead of S8.

Maria’s brother, Rupert, believes he will beneÞ t by reducing his daily kilojoule intake. His kilojoule intake over
14 days will follow a geometric sequence with a common ratio of 0.95.
On day 1, Rupert’s kilojoule intake was 12 000.
Determine Rupert’s total kilojoule intake from day 8 to day 14 inclusive.
Write your answer correct to the nearest kilojoule..


« Last Edit: October 31, 2010, 03:06:00 pm by ammuzusak »
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TyErd

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Re: Number Patterns Qn
« Reply #1 on: October 31, 2010, 03:58:04 pm »
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is the answer 50559kj?
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ammuzusak

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Re: Number Patterns Qn
« Reply #2 on: October 31, 2010, 04:23:21 pm »
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Yep
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