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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.
How many 3 digit numbers can be formed using the digits 2 3 5 6 7 9 if repetition of digits is not allowed?
120 There are 6 digits in total. The numbers with 3 digits, with all digits distinct from each other, are the permutations of the 6 digits taken 3 at a time, and therefore there are 6*5*4 = 120 of them.
How many digits are there in the numbers 100-425?
525
How many 4 digit numbers can be formed using the digits 0 1 2 3 4 5 6 7 8 9 if repetitions of digits are allowed?
10,000
How many 4 digit numbers can be formed by the digits 1 2 3 4 using the digits more than once in each number example 1112 1122?
256
Related questions
How many 3 digit numbers can be formed from the digits 24578 if no digits can be repeated?
There are 5*4*3 = 60 such numbers.
How many 3 digit numbers can be formed from the digits 102987?
180 of them.
How many 3 digit numbers can be formed from digits 1 2 3?
6!
How many 3 digit numbers can be formed from the digits 12345 if the digits cannot be repeated?
1 set
How many three digits numbers can be formed using 3 and 7?
8.
How many 4 digit numbers can be formed by the digits 3 4 6 if any of the digits can be repeated?
3*3*3*3=81
How many 3 digit even number can be formed from digits 123456 if the digits can be repeated?
6*6*3 = 108 numbers.
How many 3 digits odd numbers can be formed from the digits 1 2 3 4 and 5 if repetition is not allowed?
125
How many 3-digit numbers can be formed using the digits 1 2 3?
27
How many 4 digit numbers can be formed from digits 1 2 3?
There are 34 = 81 numbers.
How many digits numbers each less than 500 can be formed from the digits 13467 if repetitions is allowed?
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.
How many 3 digit numbers can be formed from the digits 357 with any digit repeated?
27 three digit numbers from the digits 3, 5, 7 including repetitions.
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