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How many four digit numbers are there with two repeated digits?
Wiki User
∙ 11y ago
xxyz
xyxz
xyzx
yxxz
yxzx
yzxx
if x is the digit that repeats then there are six possible placements of ten digits
y must be one of the remaining nine digits and z must be one of the further remaining eight digits
so 6x10x9x8 = 4320
(note: this supposes that leading zeros are included)
Wiki User
∙ 11y ago
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How many four-digit numbers consist of only even digits?
500
How many four digit numbers are made of odd number?
If you're asking for 4 digit numbers where all four digits are odd, then the lowest number possible is 1111, and the highest is 9999. You only have 5 digits to work with. The answer is: 54 - 53 = 625 - 125 = 500.Subtract the 5 cubed for the numbers less than 1111, which are not four digits.
What is the value of a digit 9347?
9347 is not a digit but four digits.
How many four digit numbers consist of only even digits?
256 unless you count zero in which case its 625.
How many 4 digit numbers contain no zeros?
Nine digits, four positions becomes 94 or 6561.
How many four digit numbers from the digits 1 2 3 4 5?
If the digits can be repeated, then there are (5 x 5 x 5 x 5) = 625 different four-digit numbers.If the digits can't be repeated, then there are (5 x 4 x 3 x 2) = 120 different four-digit numbers.
What is the greatest four-digit even number with no repeated digits?
The greatest 4-digit number with no repeated digits is... 9876
How many four-digit numbers can be formed with the numbers 1234 if no digits can be repeated?
4*3*2*1 = 24
How many 3-digit numbers can be made using the digits 4 6 7 9?
If the digits may be repeated, there are four choices for the first digit, four choices for the second, and four choices for the third. Thus there are 4x4x4 = 64 possible three-digit numbers with those digits. If the digits may not be repeated, there are still four choices for the first digit, but then only three remaining choices for the second, and then just two choices for the third. In this case there are only 4x3x2 = 24 possibilities.
How many four digit numbers can be formed out of 123 if a digit can be repeated?
There are 3 values (1, 2, 3) for each of the 4 digits. Therefore, there are 3*3*3*3 or 81 four digit numbers that can be formed.
What is the least four - digit odd number with no repeated digits?
1023
What is the least four-digit odd number with no repeated digits?
1023
What is the least four digit even number with no repeated digits?
0.124
How many numbers of one or more digits can be formed from the digits one two three four if no digit may be repeated in a number?
24+24+12+4=64.
What is the largest possible four digit number that can be made with no repeated digits?
9876
What is the probability of a four digit telephone extension has one or more repeated digits?
6561
What is the sum of all possible four digit numbers using the digits 4068?
-- If you accept 4-digit numbers with 'zero' as the first digit, thenthere are 24 possibilities, and their sum is 119,988 .-- If the first digit can't be a 'zero', then there are 18 possibilities,and their sum is 115,992 .Note: I didn't repeat any digits.-- If you allow repeated digits, and accept leading zeros, then there are 256 possibilities,and their sum is 1,279,872.-- If you allow repeated digits but not leading zeros, then there are only 192 possibilities,and their sum is 1,247,904.
