Question 28
When I divide an integer by 15, the remainder is an integer from 0 to 14. When I divide an integer by 27, the remainder is an integer from 0 to 26.
For instance, if the integer is 100 then the remainders are 10 and 19, which are different.
How many integers from 1 to 1000 leave the same remainders after division by 15 and after division by 27?
For instance, if the integer is 100 then the remainders are 10 and 19, which are different.
How many integers from 1 to 1000 leave the same remainders after division by 15 and after division by 27?