i think there are 18 digit 5s.
35
9,000
24 of them.
100 to 900
823543
3 digit numbers are lessthan 4 digit numbers
There are 151 3-digit numbers that are divisible by 6.
All of them.
8,999,999 of them.
9,000
2240
72. (with the range of two digit numbers being from 10 to 99).
24 of them.
100 to 900
The answer will depend on how many digits there are in each of the 30 numbers. If the 30 numbers are all 6-digit numbers then the answer is NONE! If the 30 numbers are the first 30 counting numbers then there are 126 combinations of five 1-digit numbers, 1764 combinations of three 1-digit numbers and one 2-digit number, and 1710 combinations of one 1-digit number and two 2-digit numbers. That makes a total of 3600 5-digit combinations.
823543
int doSomebodysClassHomeworkForThem( ) { // Add all the numbers between 100 and 200 with a digit 5 in it return (105+115+125+135+145+150+155+165+175+185+195); }
There are 900 three-digit numbers, all of which are between 99 and 3,000.