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43 replies to this topic

### #1 redrooster

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Posted 07 August 2008 - 09:54 PM

Here is a code breaking problem set by my son`s Engineering Maths Lecturer as “something to keep your mind active” during the Summer Vacation…..and he can only solve half of it so far.
Can anyone help?

===========================================================

A master criminal has broken into a jeweller`s strong room which has the walls lined with several thousand storage boxes protected by individual four digit combination lock codes.. Each storage box contains small bags of precious stones (diamonds etc.) so the total value of all the contents of the locked boxes in this room is several million of ££s .
Each box is labelled with a letter and three digits and the thief knows that the combination lock code for each individual box can be calculated from this sequence.

Eg ...........Box No T176 has a Combination Lock Code of 6896

However , each box has this Combination Lock Code engraved on the INSIDE and fortunately several of these boxes are empty and have been left OPEN . This means that the criminal can now list each open Box Number with its own Security Code , and , using this information will attempt to work out the method of calculating any Security Code from its Box Number.

The aim is to open two particular boxes which contain the most valuable bag of diamonds

So the question is .

"What is the code for boxes W456 and R588 ?"

Here is the list of open BOX numbers with their security CODES from inside.

Can you workout ( and explain ! ) the method to determine the combination lock code of Boxes W456 and R588

BOX CODE BOX CODE BOX CODE

P194 0851 P327 0606 P541 0427
Q068 9969 Q409 9511 Q638 9382
R002 8940 R012 8947 R017 8990
R025 8956 R030 8900 R031 8970
R032 8941 R033 8912 R037 8994
R054 8986 R082 8946 R111 8847
R125 8827 R142 8819 R150 8874
R163 8883 R216 8761 R228 8700
R283 8758 R291 8714 R294 8726
R342 8650 R370 8610 R395 8667
R437 8577 R544 8430 R560 8454
R568 8410 R642 8362 R679 8358
R711 8261 R754 8271 R808 8120
R836 8189 R846 8186 R854 8142
R870 8163 R876 8187 R941 8004
S526 7477 S702 7232 S982 7079
T337 6601 T668 6384 T860 6160
V120 4871 V555 4409 V950 4038
X482 2521 X613 2334 X623 2331

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### #2 selliss

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Posted 07 August 2008 - 10:01 PM

Spoiler for well so far i have

working on the numbers now.. they look a little harder
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### #3 yellowsubmarine

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Posted 07 August 2008 - 10:01 PM

nope i think it is wrong, silly me

Edited by yellowsubmarine, 07 August 2008 - 10:05 PM.

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### #4 selliss

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Posted 07 August 2008 - 10:07 PM

Spoiler for then we have

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### #5 Prof. Templeton

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Posted 07 August 2008 - 10:08 PM

Spoiler for well so far i have

working on the numbers now.. they look a little harder

Spoiler for Also

Just brainstorming.
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### #6 dusty_b109

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Posted 07 August 2008 - 10:09 PM

Spoiler for For the first number after the letter

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### #7 yellowsubmarine

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Posted 07 August 2008 - 10:09 PM

Spoiler for numbers

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### #8 selliss

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Posted 07 August 2008 - 10:10 PM

stumped at the min with the last 2 numbers though

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### #9 v333k

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Posted 07 August 2008 - 10:54 PM

Spoiler for I noticed...

Edited by v333k, 07 August 2008 - 10:56 PM.

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Posted 07 August 2008 - 11:15 PM

I think I have the 3rd column
Let me know if you think its wrong, or if you agree

Spoiler for 3rd column

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