Question

how many integers between 1 and 567 are divisible by either 3 or 5?

Answer 1

can you find out how many integers between 1 and 567 are divisible by just 3 ?

Answer 2

I found the answer 265. But I don't know either I should include 567 or not.

Answer 3

between 1 and 567
means 1 and 567 are excluded :)

Answer 4

then it is 264.

Answer 5

yes :)

Answer 6

similarly find the terms divisible by 5 and number of terms divisible by 15
no. of terms divisible by 3 or 5=no. of terms divisible by 3 +no. of terms divisible by 5- no. of terms divisible by 15