it's 5
9,000 of them are
49
12
99
There are 30 whole numbers that are odd numbers less than 60 which are also positive. Otherwise, there are infinitely many of them.
99000
42
220
There are 17 of them
There are infinitely many whole numbers which are less than 20. Start with 19 and go back, beyond 0, to negative infinity.
There are 14 whole numbers in that range divisible by 7. There are 19 whole numbers in that range with a 7 in their digits. Three overlap so there is a total of 30 whole numbers with either characteristic.
19
19
109 whole numbers greater than 9 and less than 999 are multiples of 9
To find the number of whole numbers less than 100 that are 10 greater than an odd whole number, we can set up an equation. Let x represent the odd whole number. Therefore, the number that is 10 greater than x is x + 10. Since x is odd, it can be represented as 2n + 1, where n is a non-negative integer. Substituting this into the equation x + 10 = 2n + 1 + 10, we get 2n + 11. To find the number of such numbers less than 100, we need to find the largest possible value of n such that 2n + 11 < 100. Solving for n, we get n < 44.5, which means the largest possible integer value for n is 44. Therefore, there are 45 odd whole numbers less than 100 that are 10 greater than an odd whole number.
it's 5