Question

Ull one for you.)
1. If the division
N=5 leaves a remainder of 3, what might be the ones digit of ?
(The one's digit, when divided by 5, must leave a remainder of 3. So the one'sdigit
must be either 3 or 8.)​

Answer 1

ANSWER  If   5 N  

 gives remainder 3, then N=5a+3 for natural number a.

For a being even, 5a has unit place 0 and 3 added gives unit place 3

For a being odd, 5a has unit place 5 and 3 added gives unit place 8

So, its either 3 or 8  ANSWER IS 3