How many different 3 digit numbers can be formed using numbers 1 to 7 if repetition is not allowed?

Since it can be 7 different possibilities, 30*7 = 210.

How many 3 digit numbers can you form by using each of the digits 7 8 1 only once?

Hence 6 three digit number can be formed.

How many 3 digit numbers formed using only the digits 1/3 and 5?

The answer is 125. Of course the answer is 6! 27. As the repetition of digits is allowed, the tens place can also be filled in 3 ways.

How many three digit numbers can be formed using only the numbers 1 to 7?

I then multiplied it by 3 since the number 2 can be in the first, second, or third digit of the number. However, the answer in the back of the sheet says it’s 210.

How many numbers of five digits can be formed from the numbers?

So, the number of 5-digit numbers that have zero as the first digit are 10 × 10 × 10 × 10 = 10,000. If we subtract these 10,000 ways from the overall 1,00,000 ways, we are left with 90,000. Therefore, there are 90,000 unique 5-digit numbers possible.

How many 3 digit numbers are possible using only 1 2 3?

Total 3 digit numbers which are possible using only 1,2,3, assuming repetition is allowed = 3*3*3 =27 2. Repetition of digits is not allowed In this case, considering we fill the unit’s place first, we can fill it in 3 different ways, then the ten’s place can be filled in 2 different ways, as 1 way has been taken up by the unit’s place.

What is the smallest 3-digit number that can start with 0?

100 is the smallest 3-digit number and 999 is the greatest 3 digit number. A 3-digit number cannot start with 0. 10 tens make 1 hundred which is the smallest 3 digit number and 10 hundred make a thousand which is the smallest 4 digit…

How many 3 digit numbers can be repeated without repetition?

If repetition is not allowed then the first digit has [math]mmath] possibilities, the second has [math]m-1[/math], and so on down to the last digit with [math]m-n+1[/math] possibilities. three-digit numbers with non-repeating digits and, of course, one thousand ([math]10^3[/math]) where digits can be repeated.

What is the largest and smallest 3-digit number in the table?

Using the digits 7, 3, and 6, the largest number is 763 (digits in descending order) and the smallest number is 367 (digits in ascending order). Using the digits 4, 0, and 8, the largest number will be 840 but the smallest 3-digit number is 408 and not 048. Download FREE Study Materials Download FREE Concept E-book