How many 3 digit numbers can be formed from the digits 123456 without repetition?

Answer: There are 648 numbers that are 3 digits numbers such that none of the digits are repeated.

How many 3 digits numbers are there with no repeated?

You have 8 choices for the third digit (digits 0 – 9 excluding the numbers you chose for the first and second digit). So by the multiplication principle (MP), there are 9*9*8 ways to do this. So there are 648 numbers that are 3 digit numbers and have no repeated digits.

How many 3 digit numbers can be formed with the digits 7 6 and 8 only?

Hence 6 three digit number can be formed.

How many 3 digit numbers contain the digit 7 at least once?

So, with 7 in the unit place, the 3 digited number can be formed in 8 x 9 = 72 ways. Hence, with 7 occurring exactly once, there are 81 + 72 + 72 = 225 three digited numbers.

How many numbers of 3 digits can be formed?

n will be the number of digits that are not in 0, 2, 3, 4, 5 and 6. Hence 1, 7, 8, 9. The value of r will be 3, as we need a form 3 digit number only. Hence, 24 3-digits numbers can be formed without using the digits 0, 2, 3, 4, 5 and 6.

How many numbers of 3 digits can be formed with the digits 12345?

How many 3-digit numbers can be formed from the digits 1,2,3,4 and 5 assuming that (i) repetition of the digits is allowed? (ii) repetition of the digits is not allowed? Total possible numbers =5×4×3=60.

What is the smallest 3 digit number?

100
100 is the smallest 3-digit number and 999 is the greatest 3-digit number.

How many numbers exactly have 3 digits?

(iii) There are 900 numbers having three digits. The smallest three-digit numbers is 100 and the greatest three-digit number is 999.

What is the largest three digit even number?

998
We also know that the largest three-digit even number is 998.

How many 3 digit even numbers will be formed using the digits 0 5 6 7 only once?

The answer is 60. How many 3 digit even numbers can be formed from 0, 1, 2, 3, 4, 5 and 6 with no repetition?

How many 2 digit numbers use the digit 7 exactly once?

Answer: There are 18 two digit numbers containing 7. Solution: 7 is a unit digit and if we add 10 with it, it results a two digit number 17, just by changing the digit in the tenth place, contains 7.

How many 3 digit numbers have the digit 3 and 7?

Three digit numbers using 3 and 7. ‘and’ indicates that at least one 3 and at least one 7 must occur in the number, right? So there would be six numbers. So together six three-digit numbers can be formed using 3 and 7.