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How many a 2 -digit numbers contain the digit 4?
-2
How many 2 digit numbers contain the digit 4?
17
How many whole 6 digit numbers using only 0 and 4?
There are 2 choices for every digit in the 6-digit number. So 26 is 2*2*2*2*2*2. The answer to that is 64.
How many 2-digit numbers contain the digit 7 only once?
-5
How many 3 digit numbers contain the digit 2 at least once?
252
How many a 2 -digit numbers contain the digit 4?
-2
What is the 2 digit country code plus 25?
There is no 2-digit country code +25. It does not exist. With the exception of +20 (Egypt) and +27 (South Africa), all country codes beginning with +2 are 3-digit codes. There are several 3-digit country codes that begin with +25.
How many 2 digit numbers contain the digit 4?
17
How many 2 digit prime numbers are there whose unit digit is greater its tens digit?
Ten.
How many 2-digit numbers contain digit 1?
1
How many whole 6 digit numbers using only 0 and 4?
There are 2 choices for every digit in the 6-digit number. So 26 is 2*2*2*2*2*2. The answer to that is 64.
How many 2 digit numbers which are a perfect a square have their last digit as 8?
none
How many 2-digit numbers contain the digit 7 only once?
-5
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 4 digit whole numbers can you make with only the digits 2 and3?
16. You have two choices for the first digit (2 or 3). With each of them you have 2 choices for the second digit. For each 2-digit number so far you have two choices for the third digit and, finally, for each of these there are 2 choices for the 4th digit. All in all, 2*2*2*2 = 16 choices.
How many combinations of 2 and 3 digit number using 4 and 8?
the answer is = first 2-digit number by using 48= 28,82 and in 3 digit is=282,228,822,822
How many 10-digit numbers can be formed using the digits 1and 2?
You have 2 options for the first digit, 2 options for the second digit, etc. ... In total, that gives you 210 combinations.
