1,3,7,9,11,13,17,19,21,23,27,29,31,33,37,39…, ,91, 93,97 ,99… 991, 993, 997, 999
There are 4 in each row of 10, so how many rows are there in 1000? 100. 100 multiply by 4 is 400 so there are 400 solutions.There are 1,000 positive integers between 1,000 and 9,999, inclusive, that are divisible by nine.
332
334 of them.
From 1 (inclusive) to 1000(inclusive,) 750.
There are 2828 integers between 1000 and 9999.
There are 1,000 positive integers between 1,000 and 9,999, inclusive, that are divisible by nine.
332
334 of them.
From 1 (inclusive) to 1000(inclusive,) 750.
you can say that 2/10 of every 10 integers is divisible by 5, so multiplying 2/10 by 100, giving you 200/1000 total integers are divisible by 5. half of all integers are odd, so divide 200/1000 by 2 is 100/1000, so you can correctly state that 100 odd integers under 1000 are divisible by 5.
333 integers.
There are no numbers that are divisible by 21 but not by 7 so the "or 21" part of the question can be ignored.There are 166 numbers between 1 and 1000 that are divisible by 6. However, 23 of those are also divisible by 7.So 166 - 23 = 143 numbers.
There are 90 integers less than 1,000 that are divisible by 11.
There are 2828 integers between 1000 and 9999.
The sum of the positive integers from 1,000 to 1,100 inclusive is: 106,050
There are 10 palindromes divisible by 9 between 1000 and 9999.
666 integers.