How many 3 digit numbers greater than 700 can be formed?
Given the numbers 1, 5, 7, 8, and 9, how many 3-digit numbers larger than 700 can be formed if repetition is not allowed? The answer is 36.
How many numbers of three different digits can be formed from the digits 1/2 and 3 without repetition?
Ex: Given 1, 2, and 3, you could make 123, 132, 213, 231, 312, or 321. Plugging that entire expression above into the calculator gives you 156; there are 156 different numbers you could create from the set {1, 2, 3, 4, 5, 6} that are AT MOST 3 digits.
How many even numbers of 3 digits can be formed when repetition of digits is allowed?
Problem 2: How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated? Solution: Answer: 108.
How many 3 digit numbers can be formed using the digits 1 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 3 digit number are there for which the product of their digits is more than 2 but less than 7?
21 digits
∴ There are 21 digits whose products of their digits is more than 2 but less than 7.
How many even 3 digit integers are there?
3 digit numbers range from 100 -999. (There are 900 3-digit numbers.) Exactly half of all integers are even. Half of the 900 3-digit numbers are even, and the other half are odd.
How many numbers consisting of three different numbers and less than 300 which are formed from the numbers 0 1 2 3 and 4?
The answer is 12.
How many 3-digit numbers can be formed from the digits?
(n−r)! Now in this case we have to find n. n will be the number of digits that are not in 0, 2, 3, 4, 5 and 6. Hence 1, 7, 8, 9.
How many even numbers of 3 different digits can be formed?
Explanation: As the repetition is allowed, So the number of digits available for X = 6, Similarly, the number of digits available for Y = 6. Thus, The total number of 3-digit even numbers that can be formed = 6×6×3 = 108.