Table of Contents
- 1 How many 10 digit numbers can be formed with no digit 1 and 2?
- 2 How many 10 digit numbers can be formed without repeating any digits at equal distances from the beginning and the end is always one then the number of ways?
- 3 How many numbers can be made with 10 digits?
- 4 How many numbers can be made with 4 digits?
- 5 How many ten digit numbers can be formed without repeating any digit?
- 6 What is the largest 10-digit number that can be formed using all the digits without any repetition?
How many 10 digit numbers can be formed with no digit 1 and 2?
⇒n10=9 . After filling up P10 in any one way, 9 digits (including 0) remain so P9 can be filled up in 9 ways. Similarly P8 can be filled in 8 ways. =9×9×8×7×6×5×4×3×2×1=9(9(!
How many 10 digit numbers can be formed without repeating any digits at equal distances from the beginning and the end is always one then the number of ways?
The probability that the difference of the digits at equal distances from the begining and the end is always 1, is. 17/1944.
How many numbers can be made with 10 digits?
If repetition is allowed, then the number of permutations of 10 digits is 10,000,000,000.
How many 10 digit numbers can be made with odd digits so that no consecutive digits are same?
The ten digits numbers that can be made with odd digits so that no two consecutive digits are the same are 5 × 4`9. The odd digits which can be considered are (1,3,5,7 and 9).
What is the greatest ten digit number with no repetition of digits?
As we know that if any number N is divisible by a and b and if a and b are co-primes, then the number is divisible by a⋅b. So the factor of that number is 99999.
How many numbers can be made with 4 digits?
The thousands place in a 4-digit number cannot be 0. The smallest 4 digit number is 1000 and the greatest 4 digit number is 9999. There are 9000 four-digit numbers in all.
How many ten digit numbers can be formed without repeating any digit?
So there are 9*10^9 = 9,000,000,000 10-Digit numbers.
What is the largest 10-digit number that can be formed using all the digits without any repetition?
How many combinations of 10 letters are there?
Why Limit The Combinations To Only 7?
| Characters | Combinations |
|---|---|
| 9 | 362,880 |
| 10 | 3,628,800 |
| 11 | 39,916,800 |
| 12 | 479,001,600 |
How many 8 digits mobile numbers can be formed if at least one of their digits is repeated and 0 can also start the mobile number?
How many 8 digit mobile numbers can be formed if any digit can be repeated and 0 can also start the mobile number? Explanation: Here the digits(0,1,2,3,4,5,6,7,8,9) can be repeated and 0 can also be used to start the mobile number. Hence, any of the 10 digits can be placed at each place of the 8 digit number.