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A zip-code is a five-digit

this code has five digit 1,2,3,4,5. the first digit plus the second digit is equal to the third digit the second digit twice
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2. asked by shruthi
3. 885 views
A safe has a 4-digit lock code that does not include zero as a digit and no digit is repeated. What is the probability that the
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A three-digit code is made up of three different digits from the set (2,4,6,8). How many three-digit codes can be formed if no
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2. asked by belle
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A zip-code is a five-digit number identifying where in the U.S. an address is located. The first four digits in a zip code can
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2. asked by Anonymous
3. 824 views
How many international direct-dialing numbers are possible if each number consists of a four-digit area code (the first digit of
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2. asked by Kal Jay
3. 1,826 views
The first digit of a 3-digit telephone area code is 6 or 7. The second digit is 9. How many codes are possible?
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2. asked by Anonymous
3. 497 views
if there is a 4 digit code and the number choices are 0-9 and the last two numbers in the code are 0 and 7 what are all the code
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2. asked by barbra
3. 544 views
A 4-digit pin code can begin with any number except 0,1 & 2. If repetition of the samedigit is allowed, the probability of a pin
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2. asked by Anas
3. 236 views
Max is trying to guess the code to Kofi’s bike padlock. Kofi has told him that: the code has 3 digits, it is a number greater
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2. 43 views
A company employee generates a series of five-digit productcodes in accordance with the following rules: The codes use the
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2. asked by Carolyn
3. 1,628 views