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How many different 3 digit area codes can be created if no digit can be repeated?
Wiki User
∙ 11y ago
The answer is 720 different area codes.
This is how you calculate it. There are 10 different numbers for the first category, then 9 for the second and 8 for the third, then you multiply those numbers in this order: 10 x 9=90, then 90 x 8=720.
Wiki User
∙ 11y ago
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How many different 4-digit codes are possible if the digits cannot be repeated?
If you include 0000, ten thousand unique four digit codes are possible.
How many different 5-digit zip codes are possible if no digits are repeated?
10*9*8*7*6=30,240
How many different 5 digit zip codes are possible if digits are allowed to repeated?
As far as I can tell, all 5 digit numbers are potential zip codes, so there are 99999 + 1 potential zip codes, or 100,000. Many of these are not actually is use.
How many different 3-digit codes can be created if no digit can be repeated?
Any 3 from 10 in any order = 10 x 9 x 8 = 720It depends on what other restrictions you place on the numbers. For example, in North America (country code +1 = USA, Canada, etc.), area codes cannot have 0 or 1 as the first digit, and cannot have 9 as the second digit.
How many 3 digit numbers can be created if no digit can be repeated?
720 (10*9*8)
How many different 4-digit codes can be created if no digit can be repeated?
Any 4 from 10 in any order = 10 x 9 x 8 x 7 = 5040
How many different 4-digit codes are possible if the digits cannot be repeated?
If you include 0000, ten thousand unique four digit codes are possible.
How many different 5-digit zip codes are possible if no digits are repeated?
10*9*8*7*6=30,240
How many different 5 digit zip codes are possible if digits are allowed to repeated?
As far as I can tell, all 5 digit numbers are potential zip codes, so there are 99999 + 1 potential zip codes, or 100,000. Many of these are not actually is use.
How many different 3-digit codes can be created if no digit can be repeated?
Any 3 from 10 in any order = 10 x 9 x 8 = 720It depends on what other restrictions you place on the numbers. For example, in North America (country code +1 = USA, Canada, etc.), area codes cannot have 0 or 1 as the first digit, and cannot have 9 as the second digit.
How many 3 digit numbers can be created if no digit can be repeated?
720 (10*9*8)
How many different 4-digit codes are possible if the last digit has to be zero?
There can be 103 = 1000 codes.
How many different 6 digit serial numbers are available if no digit can be repeated?
9x9x8x7x6x5 = 81x56x30 = 136080
Maths Problem Banks issue customers with 4 digit Pin Code numbers however the PIN codes have to have a pair of repeated digits 0889 6647 but not 3453 or 4444 how many codes are there?
the repeated digits can lie in any of 3 positions:XXYZ,YXXZ, or YZXXTherefore, the number of different possible repeated digit combinations is 10×3=30 (there are 10 different possible digits).There are then 9 values left that Y could be, after the X's have their values, and 8 values left that Z could be, to ensure no unintended repeated numbers.This gives (10×3)×9×8=2160. There are therefore 2160 possible codes.
What is the smallest 6 digit number using the digits 12345?
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
How many possible 4 digit combinations are there using 0-9. how many different combination codes are possible?
There are 210 4 digit combinations and 5040 different 4 digit codes.
What is the largest 10 digit number with no repeated digits?
The largest 10-digit number with no digit repeated is 9876543210 !
