How many 8 digit combinations are there using 0 9?
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How many 8 digit combinations are there using 0 9?
Or perhaps you meant the number of 8 digit numbers (repetitions permitted) using the digits 0-9. In that case, each digit has 10 choices and there are 8 of them, so the answer is 108 = 100 000 000.
How many combinations can be made with 8 numbers?
The number of combinations possible with 8 numbers is 255.
How many telephone connections may be allotted with 8 digits from the number 0 to 9?
2520 ways
Thus we can form 8 – digit telephone numbers using 0 to 9 digits in 2520 ways.
How many 8 digit numbers can be formed if any digits can be repeated?
Hence, any of the 10 digits(0,1,2,3,4,5,6,7,8,9) can be placed at each place of the 8 digit number….Permutation and Combination #74.
| 74. 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? | |
|---|---|
| A. 107 | B. 108 – 10P7 |
| C. 108 – 10P8 | D. 108 |
How many possibilities are there with 9 numbers?
Therefore, the total number of possibilities is given by 9×9! =3265920. Hence, 9 digit numbers of different digits can be formed in 3265920 ways.
How many 8 digits mobile numbers can be formed if at least one of their digits is repeated and 0 Cannot be used to start the mobile number?
Hence, any of the 9 digits (∵ any digit except 0) can be placed at the 1st position….Permutation and Combination #75.
| 75. How many 8 digits mobile numbers can be formed if at least one of their digits is repeated and 0 cannot be used to start the mobile number? | |
|---|---|
| A. 9 × 107 – 9 × 9P7 | B. 107 |
| C. 108 – 10P7 | D. 108 – 10P8 |
How many numbers can be formed with 6 digits?
∴ 360 different 6-digit numbers can be formed.
How many 8 digit mobile numbers can be formed if any digit can be replaced 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.