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How many different 4-digit numbers can be formed using each of the digits in 1999 exactly once?
Wiki User
∙ 12y ago
-1995
Vincent Schneider
Wiki User
∙ 12y agoThe key to this question is noting that only the position of the 1 is important. Where the 9s are is dictated by the position of the 1 within the 4 digit number. There are only 4 possible places for the 1 to be, and thus there are only 4 different 4 digit numbers that can be formed from the digits in 1999 only once:
1999, 9199, 9919, and 9991
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How many numbers have exactly have 3 digits?
900
How many numbers exactly have 6 digits?
900000
How many whole numbers have exactly 2 digits?
there are 89 twodigits in whole numbers
How many different numbers can you make using 5 different digits?
89,999 different numbers i guess
How many 6 digit numbers contain exactly 4 digits?
Zero; all six digit numbers have six digits. Dude.. i m asking 6 digit numbers, containing only 4 different digits..!! e.g.:123412.. with only 2 digits repeated..!! My guess is: 10*9*8*7*4*3 but I'm also guessing that is wrong- sorry!
How many whole numbers have exactly four digits?
how many numbers exactly have 4 digits ? 8900, 8999, 9000, 9999
How many 6 digit numbers contain exactly different 4 digits?
There are 22680 numbers, excluding those with leading 0s.
How many numbers exactly have 2 digits?
90 of them.
How many numbers exactly are there in 2 digits?
There are 90 of them.
How many numbers have exactly have 3 digits?
900
How many numbers exactly have 6 digits?
900000
How many numbers have exactly 5 digits?
90000 of them.
How many whole numbers have exactly 2 digits?
there are 89 twodigits in whole numbers
How many whole numbers have exactly three digits how did you find that out and tell me why that's the answer?
Assuming that 001, 080, etc are not allowed (that is a leading zero or two is not permitted), the smallest number with exactly three digits is 100. The largest number with exactly three digits is 999. So there are 999 - 100 + 1 = 900 numbers with exactly three digits.
How many whole numbers use exactly two digits?
90
How many holes numbers have exactly three digits?
900, all numbers from 100 to 999 inclusive.
How many different numbers can you make using 5 different digits?
89,999 different numbers i guess
