# Can 10 odd numbers make 100?

Yes, there are an infinite number of posibilities. Staying only with positive odd numbers, if duplicates are allowed, then five 9s and five 11s make 100.

If duplicates are disallowed, then 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 = 100

### What numbers between 1-100 contain only odd digits?

All the odd numbers of the odd tens plus the odd numbers less than 10. There are 5 odd numbers in each ten There are 5 odd tens, plus the numbers less than 10 giving 5 x (5+1) = 30 numbers in 1-100 (inclusive) which are comprised entirely of odd digits. If the "between" excludes 1 and 100, then there are 29 such numbers.

### How many odd numbers are between 81 and 1453?

The answer is 685 odd numbers, 686 even numbers "between" 81 and 1453. If it said "to" you would include them. - 82 through 100 is 9 odd numbers and 10 evens - there are 50 (half) even/odd numbers per 100, so 100-1400 is 13 x 50 = 650 of each even/odd - there are 26 odd numbers, 26 even numbers in the remaining 52, since between doesn't include 1453. - total odd numbers is…

### What is the percent of numbers whose digets add up to an odd number between one and one hundred?

Since we are talking for the sum of digits, then we are talking about 2-digit numbers between 1 and 100, which are 90 numbers (10 to 99). From these numbers only half of them satisfy the above condition, that is 45 numbers. So 50% of 2-digit numbers between 1 and 100 have an odd sum of their digits.