The first 5 digit number is 10,000 and the last is 99,999. Thus there are 90,000 numbers between that range. Half of them are odd & half are even. 45,000 each
5*5*4*4 = 400
2000
5.
You cannot. The sum of 5 odd numbers is always odd. 30 is not odd.
I think the question means to ask for "four-digit" odd numbers, and left out a word. Each candidate is of the form (T H N U), and we're told that (H = N + 2). ' T ' can be: 1, 2, 3, 4, 5, 6, 7, 8, 9 = 9 possibilities. For each of these ... ' H N ' can be : 97, 86, 75, 64, 53, 42, 31, and 2,0 = 8 possibilities. For each of these ... ' U ' can be: 1, 3, 5, 7, 9 = 5 possibilities. So the total number of possibilities is: (9 x 8 x 5) = 360different 4-digit odd numbers with the hundreds digit greater by two than the tens digit.
All of them. There are roughly 45,000 5-digit odd numbers. None of them end in 0.
5*5*4*4 = 400
2000
11111
625. Here's how:There are five odd digits {1,3,5,7,9} so our numbers will be made using only these digits. This is the same number of possibilities as if you had a base 5 number system where the allowed digits are {0,1,2,3,4}. For a 1 digit base-5, there are 5 possibilities, for a two digit base-5 there are 5² = 25 possibilities, so for a 4-digit, there are 5^4 = 625possible. This is the same number you will have with only using odd digits.
50% of numbers divisible by 5 are even, the other 50% are odd. If the single's digit of a number is 5, then the number is divisible by 5 and odd. For example, 25. However, if the single's digit of a number is 0, then the number is divisible by 5 and even. For example, 20.
1, 3, and 5.
5.
125 (5 to the third power). Each digit can be one of 5 (1/3/5/7/9).
As an example, 13579 the number 5 is in the hundreds place and has the value of 500. It does not matter whether the numbers are odd or even.
9 x 10 x 10 x 5 = 45000
oddOdd numbers are integers which are not multiples of 2 or numbers with the last digit of 1, 3, 5, 7 and 9.The last digit of 4361 is 1 so it is an odd numbers.The last digit of even numbers can be 0, 2, 4, 6, and 8.