Cie AS Computing

ICT Students 2011

Dear Students,

This is the ICT forum for all of you to discuss on the topics we have had in our class.

Please share freely your views on ICT classes and how you feel about the topics that were covered in your class.

Dr.Ravi

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Permalink Reply by Ravichandran on July 29, 2011 at 22:40

Thanks Nurul Shahirah, Your idea and logic was so well knitted that when i read it I really enjoyed it. Hats off to your thinking mind.

Dr.Ravi

Nurul Shahirah said:

Once upon a time , in a land away from civilisation there was a college called Kolej Tunku Jaafar. There was a group of rats invading the apartments. After a few months trying to solve the problem, the management department decided to exterminate these rats. At first, the management department asked the students to throw away all of the food of the chalet to prevent from attracting the rats. However, it did not work so it was clear that the rats had a hidden agenda in the apartments. So one day the rats had annoyed the headmaster, Mr. Kenneth so he decided to take matters into his own hands. So for over a period of 17 days, he studied the behaviour of the rats and he soon found out that if he wanted to chase out the rats, some of the rats would run into the next chalet and it will multiply. So Mr. Kenneth suggested this formula

Unknowns: r - Number of rats

rc -Number of rats chased out

1^st Chalet

= r– rc

Multiplies by 2

2nd Chalet

= 2r-2rc-rc=2r-3rc

Multiplies by 3

3rd Chalet

= 6r-9rc-rc = 6r-10rc

Multiplies by 4

4th Chalet

= 24r-40rc-rc = 24r-41rc

= 24r-41rc = 0

= 41/24 = r/rc

Therefore : x =41 and y = 24

Mr. Kenneth then checks back his formula

1^st Chalet : 41-24=17

2^nd Chalet : 2(17)-24=10

3^rd Chalet : 3(10)-24=6

4^th Chalet : 4(6)-24 = 0

Mr Kenneth has successfully ousted the monkeys away from KYUEM and this further concretes his post. He went on to pursue his computing in PhD in United States.

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Permalink Reply by Ravichandran on July 29, 2011 at 22:45

Dear Abdul jabbar, very good creativity you have had in your posting. Thanks for making me feel proud.

Dr.Ravi

Abdul Jabbar Rinol said:

Located in Lembah Beringin, Kolej Yayasan UEM has been producing elite students throughout the world ever since it was built.

Recently, all 4 IT labs at the college have been attacked by a powerful virus. It was so powerful that the management had to call experts from all over the globe. However, no matter how many people they call, they couldn’t remove the virus. Instead, they hop from one lab to another and duplicate every time the experts try to remove them.

When all hope was lost, suddenly, out of nowhere, appeared their saviour. It was none other than Dr. Ravi himself!

He proposed a method somewhat different from the others. But, he had a problem. He could only remove a certain amount of virus per day. He used 2 variables in his method. Which were X and Y.

X = Number of active Virus.
Y = Number of Virus cleared.

So he went to the 1^st IT lab on the first day and cleared the virus there.

= X-Y

The remaining virus hopped to the 2^nd IT lab and duplicated.

=2(X-Y) = 2X-2Y

The next day, he cleared the 2^nd lab.

= 2X-2Y-Y = 2X-3Y

The virus then hopped again and duplicated on the 3^rd it lab and Dr. Ravi cleared it on the 3^rd day.

=3(2X-3Y)-Y = 6X-10Y

On the 4^th day, he cleared the virus.

=4(6X-10Y)-Y = 24X-41Y.

And the day after that, everyone was surprised! All the virus has been cleared. He explained how it works

41/24 = X/Y

Therefore, X = 41 and Y = 24

1^st lab = 41-24=17

2^nd lab = 2(17)-24 = 10

3^rd lab = 3(10)-24 = 6

4^th lab = 4(6)-24 = 0

KYUEM was saved by Dr. Ravi!!