Question

if a number divided by 5 leaves remainder 3 what might be the ones digit of the number

Answer 1

Step-by-step explanation:

Basically, N is of the form 5k+3 where k is an integer!

(This is because, it leaves a remainder 3 when divided by 5)

Now, put k=0,1,2,3…..

k=0 => 3 => Ones digit is 3,

k=1 => 8 => Ones digit is 8,  

k=2 => 13 => Ones digit is 3,  

k=3 => 18 => Ones digit is 3,

k=4 => 23 => Ones digit is 8,

k=5 => 28 => Ones digit is 3.

the ones digit is either 3 or 8.

Answer 2

Answer:

8 or 3

Step-by-step explanation:

Suppose the no. is x,

So,

x=5k+3

x-3=5k

The only possible values for one's digit no. is 8 or 3.