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How many different four digits number can be formed can be formed using digits 1 2 3 4 5 6 7 8 9 such that digit 5 appears exactly once?
Wiki User
∙ 9y ago
The 5 can appear in any of the 4 positions, and for each of those 4 positions the other 3 positions can be filled by any of the other eight digits (1-4, 6-9).
→ 4 x 8 x 8 x 8 = 2048 different numbers with the 5 appearing exactly once.
Wiki User
∙ 9y ago
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What is the largest five digit number that can be formed using the digits 7 and 9?
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
How many numbers of at least tree different digits can be formed from the integers 123456?
Numbers formed should be of at least 3 digits means they may be of 3 digits, 4 digits, 5 digits or 6 digits. There are 6 choices for digit in the units place. There are 5 and 4 choices for digits in ten and hundred’s place respectively. So, total number of ways by which 3 digits numbers can be formed = 6.5.4 = 120 Similarly, the total no.of ways by which 4 digits numbers can be formed = 6.5.4.3 = 360. the total no. of ways by which 5 digits numbers can be formed = 6.5.4.3.2 = 720. The total no.of ways by which 4 digits numbers can be formed = 6.5.4.3.2.1 = 720. So, total no.of ways by which the numbers of at least 3 digits can be formed = 120 + 360 + 720 + 720 = 1920.
How many different 4-digit numbers can be formed from the digits of 0 2 4 and 7?
192, including ones containing repeat digits.
How many different 4-digit numbers can be formed using each of the digits in 1999 exactly once?
-1995
How many computer passwords that consist of 4 different digits can be formed from among the digits 0 to 9?
The number of 4 digit codes, using different digits, is 10*9*8*7 = 5040. However, computer passwords can, usually, have repeated digits and, if that is allowed, you can have 104 = 10000 codes.
How many 4 digit numbers can be formed from digits 123456789?
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
How many four digits numbers can be formed using 0578?
If the digits are all different then 18. Otherwise, 192.
What is the largest five digit number that can be formed using the digits 7 and 9?
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
How many numbers of at least tree different digits can be formed from the integers 123456?
Numbers formed should be of at least 3 digits means they may be of 3 digits, 4 digits, 5 digits or 6 digits. There are 6 choices for digit in the units place. There are 5 and 4 choices for digits in ten and hundred’s place respectively. So, total number of ways by which 3 digits numbers can be formed = 6.5.4 = 120 Similarly, the total no.of ways by which 4 digits numbers can be formed = 6.5.4.3 = 360. the total no. of ways by which 5 digits numbers can be formed = 6.5.4.3.2 = 720. The total no.of ways by which 4 digits numbers can be formed = 6.5.4.3.2.1 = 720. So, total no.of ways by which the numbers of at least 3 digits can be formed = 120 + 360 + 720 + 720 = 1920.
How many different 2 digit odd numbers can be formed from the digits 1 through 8 if no digits are repeated in a number?
36
How many different four-digit numbers can be formed from the digits 0 through 9?
10,000
How many different 4-digit numbers can be formed from the digits of 0 2 4 and 7?
192, including ones containing repeat digits.
How many different 4-digit numbers can be formed using each of the digits in 1999 exactly once?
-1995
How many numbers of 3 digits and less than 500 can be formed from the integers 3 4 5 and 9 if the digits must be different?
12 numbers.
How many computer passwords that consist of 4 different digits can be formed from among the digits 0 to 9?
The number of 4 digit codes, using different digits, is 10*9*8*7 = 5040. However, computer passwords can, usually, have repeated digits and, if that is allowed, you can have 104 = 10000 codes.
How many different license plates can be formed if each one consists of 7 digit number and each number can occur once and the first number can't be a zero?
The number of different 7 digit plates that can be formed where the digits are notrepeated and no zero appears as the first digit is: 544 320.Calculation:Number of different plates = 9 [9P6] = 9 [9!/(9-6)!] = 9x9x8x7x6x5x4 = 544 320.
How many different four digit numbers can be formed by rearranging digits 2013?
how make the answer im don/now
