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I want to know how many combinations you can get using the numbers 1 to 20

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1,048,575.

There are 20 different 1-number combinations, 190 different 2-number combinations, 1140 three-number combinations, and so on.

Posted on Jun 03, 2014

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I forgot yo open a security box. Please let me know how.


1 You will need to find out the combination. The first thing to do is to move the entire dial that is in the lock to the right. This will let you know that all the wheels are disengaged. 3. You will need a stethoscope. Each time you turn the dial, you reach the point of the combination number you can hear a click here. You should make notes considering the numbers you can read on the dial each time you hear two clicks. This will help you know the length of the combination. You must use a stethoscope to listen carefully and precisely where the clicks sound. 4. Repeat the process. Then repeat the process considering the number of clicks you hear in the process, repeat several times to make sure you're right about the number of click. This information should be represented in a chart in order to know the numbers of the combination to open safe. You have to start testing the clicks generated by the box when the dial is turned, the dial should be at zero.
5. Combine data to open safe. With the data obtained when listening to the clicks generated by the dial, you should start making combinations and test them in the safe until you get the perfect combination that will help you open the safe. Example if when turning the dial you could hear 3 times two clicks, ie the combination of the safe must have 3 numbers. Consider the exact numbers you could see on the dial when you heard the clicks. Then you must have something like this in your notes (2, 65, 34). Start combining them and try in the safe until you find the right combination, start making patterns and discard. Then those copied in your notes will be the secret code numbers that will open safe. It is very important that you have been very careful when listening to the clicks and that this process has been done several times to be sure that these numbers are correct. Now you can make patterns, considering the numbers that you raise in the example, such as: 2.34,65); (34,265); (65,2,34) and so on until finding the correct one. That is why you need to write down all possible combinations and tosa trials. Remember the success of, without opening your safe, without a locksmith, and also considering that you do not have the possibility to call a manufacturer. Be: • Listen carefully to the sounds of the clicks you hear in the safe. • Avoid other sounds that may distort your ability to listen carefully • Record exact numbers where you clicked • Be patient and test your combinations. You must have on hand the instructions of the manufacturer of the safe, if you do not have it, look on the web since surely the manufacturer has a page where you can find this information. You could also call the manufacturer and prior identification will give you the key to your safe. Otherwise and if you've tried all the possible combinations and you just can not do it, call a locksmith. You no longer have a bad life and recover your valuable items, open safe can generate waste of time but if you strive you will stay with great satisfaction.

Aug 13, 2017 | Cell Phones

5 Answers

Permutation formula


1 to 9 sounds wrong, it should ben 10 to 9 if it is permutation order 10

Aug 13, 2008 | Microsoft Computers & Internet

1 Answer

I have 11 numbers. I want to use those 11 numbers to create 7 number combinations.


Does every number have to be taken only once?
If order is important you have 11P7=1663200 permutations (different from combinations)
If order is not important for example 1,2,3,4,5,6,7---- 2,1,3,4,5,6,7----2,3,1,4,5,6,7----2,3,4,1,5,6,7 etc are all one and the same then you have
11C7 =330 combinations.
You get them by mere obstinacy: take a pad and start. It is only 330.

Dec 13, 2013 | Office Equipment & Supplies

2 Answers

Does anybody know how many different combinations there are for the numbers 1, 2, 3, 4, 5 and 6?


That depends on how many of those six numbers you take.
If you only take one number, there are six combinations: {1}, {2}, {3}, {4}, {5}, and {6}.
If you take two numbers, there are fifteen combinations: {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {2,3}, {2,4}, {2,5}, {2,6}, {3,4}, {3,5}, {3,6}, {4,5}, {4,6}, and {5,6}.
If you take three numbers, there are twenty combinations.
If you take four numbers, there are fifteen combinations.
If you take five numbers, there are six combinations.
If you take all six numbers, there is only one combination: {1,2,3,4,5,6}.
In general, if you take 'm' objects out of a set of 'n' objects, the number of combinations is given by n!/[(m!)(n-m)!] where '!' is the factorial operator.

Apr 30, 2013 | Mathsoft Computers & Internet

1 Answer

I locked my comination code in the safe can you help bar code 3907400688 4 safe is MSW3517


Hi,

Very sorry to know that you have lost the combination.

Well, the only way to get the combination is to contact Sentry and get it.

As per the company regulations, if you have registered the details of purchase and combination in their website then its very easy to recover, just send them the requisite information by clicking the link below, and they will forward you the combination.

Sentry.com

If you have not registered with them, then follow these instructions from Sentry:

First step, find the Model and Serial Number of your safe.
The Serial Number is in this packet, and is also printed on the small label beside the door hinge (outside). Send a copy of the model number and serial number of the safe, a notarized letter (last name of notary must be different than that of owner) stating you are the owner of the safe, and a check or money order for $12.00* (U.S. funds) to:
Sentry Group, Dept. 200,
882 Linden Avenue,
Rochester, NY 14625-2784 USA.
If using a credit card (Visa/Mastercard only), call 1-800-828-1438
and fax your Model and Serial number with the notarized letter
to 585-381-2940, 585-381-2940.

Next time make sure you record the combination and store it in a secure place such as a safety deposit box at your bank. Opening your safe could be a lot more fun, but never more simple!

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Jul 06, 2011 | Vacuums

2 Answers

I have a safe with combination lock. I know the combination. however, I don't recall the simply rotations. like our old combination lock on a locker at school was: spin to the right or clockwise to clear...


hi, it should be turn right then stop on 1st number then turn left stop on 2nd number then turn right stop on 3rd number then turn left stop on 4th.

This should then solve your problem.

Let me know how you get on or if you need further assistance ok

Jan 20, 2010 | Schylling Combination Steel Safe

3 Answers

I do not know the combination of my samsonite hard case suitcase


I tried working through the series of possible numbers and at the same time gently pressing the lower part of the lock to see if it would open. After a while I used a claw hammer which I gently inserted the claw beneath the lower portion of the lock and again gently prised it and at first go the lock opened and no damage done that I can see. I have not reset the lock yet.

Oct 16, 2009 | Samsonite Tripod

2 Answers

Know combination, but cannot open sentry safe 1250


If you know the combination:

1) Turn the dial to the left a few complete rounds, then stop on 1st number.
2) Turning the dial to the right, pass up the 2nd number once, then stop on it on the next round.
3) Turn the dial to the left directly to the 3rd number then stop.

The handle should open now.

Feb 28, 2009 | Sentry Fireproof Safe

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