Question

If k is an even integer, what is the remainder when k is divided by 10 ? (1) the remainder when k is divided by 5 is equal to the remainder when k is divided by 10. (2) the remainder is greater than 3.

Answer 1

Heya user,

Clearly, 

If the remainder when k is divided by 5 is equal to the remainder when k is divided by 10, k < 10x + 5 for some 'x'

Now, since the remainder is greater then 3, and it is an even integer, the only possible remainder is 4

Answer 2

the answer is the !5.....