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How many three digit numbers contain any odd digits?
874
How many four digit numbers are there which have exactly the same two digits.?
Any pair of digits (not including 0), can be used to generate 14 four-digit numbers. If one of the digits is 0, only seven will start with a non-zero digit.
How many 3-digit numbers have exactly 2 digits that are the same?
1
How many 3 digit numbers have 2 of the same digits?
Exactly 2: 243 of them.
Two digit numbers contain exactly one 4?
There are 17 of them.
How many 6 digit numbers contain exactly different 4 digits?
There are 22680 numbers, excluding those with leading 0s.
How many three digit numbers contain any odd digits?
874
How many four digit numbers are there which have exactly the same two digits.?
Any pair of digits (not including 0), can be used to generate 14 four-digit numbers. If one of the digits is 0, only seven will start with a non-zero digit.
How many 3-digit numbers have exactly 2 digits that are the same?
1
How many 3 digit numbers have 2 of the same digits?
Exactly 2: 243 of them.
How many 5 digit numbers contain exactly two 7 in them?
There are 6804 such numbers.
Two digit numbers contain exactly one 4?
There are 17 of them.
Do any credit cards have 14 digit numbers?
There are exactly 14 digits on the Diner's Club Credit Card. Some other credit cards may contain only 14 digits, but usually there are 16 digits found on a credit card.
How many three-digit numbers contain only the digits 5 and 6?
Six three-digit numbers contain only the digits 5 and 6. This is assuming you mean both the digits of 5 and 6. If not than 8, as it would include 555 and 666. 556, 565, 566, 655, 656, 665
What five odd-digit numbers add up to exactly twenty?
that question cant be answered unless it was 3 odd-digits or 4 odd-digits with 1 even digit i think.
How many 4 digit numbers can you make with 10 digits?
Ten different digits can be used to make 10C4 = 10*9*8*7/(4*3*2*1) = 210 four-digit numbers. Either numbers starting with 0 are permitted or the 10 digits do not contain a 0.
How many whole numbers from 1 to 100 contain the digit 3 exactly once?
18
