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How many 2 digit numbers contain the digit 4?
17
How many 2-digit numbers contain the digit 7 only once?
-5
How many 2-digit numbers contain the digit?
It would help to know which digit. 0 appears in 9 numbers and each of the others in 18 numbers.
How many 3 digit numbers contain the digit 2 at least once?
252
How many whole numbers between 100 and 400 contain the digit 2 in their standard notation?
The answer is 138
How many 2 digit numbers contain the digit 4?
17
How many 2-digit numbers contain digit 1?
1
How many 2-digit numbers contain the digit 7 only once?
-5
How many 2-digit numbers contain the digit?
It would help to know which digit. 0 appears in 9 numbers and each of the others in 18 numbers.
How many 3 digit numbers contain the digit 2 at least once?
252
How many whole numbers are in a set between 100 and 400 that contain the digit 2?
138 of them.
How many whole numbers between 100 and 400 contain the digit 2 in their standard notation?
The answer is 138
How many whole number between 100 and600 contain the digit 2 in their standard notation?
There are 175 such numbers.
How many 2 digit descending numbers are there?
There are 45 such numbers.
How many 2 digit numbers have no 2 at all?
72. (with the range of two digit numbers being from 10 to 99).
How many three digit numbers contain the digit 2?
100-199 has 19 numbers200-299 has 100 numbers300-399 has 19 numbers400-499 has 19 numbers500-599 has 19 numbers600-699 has 19 numbers700-799 has 19 numbers800-899 has 19 numbers900-999 has 19 numbers(8x19)+100 = 152 + 100 = 252252 three digit numbers contain the digit 2
How many 5 digit combos in 30 numbers?
The answer will depend on how many digits there are in each of the 30 numbers. If the 30 numbers are all 6-digit numbers then the answer is NONE! If the 30 numbers are the first 30 counting numbers then there are 126 combinations of five 1-digit numbers, 1764 combinations of three 1-digit numbers and one 2-digit number, and 1710 combinations of one 1-digit number and two 2-digit numbers. That makes a total of 3600 5-digit combinations.
