Question

If a number is divisible by 5 ,what might be the ones digit if it leaves remainder of,
a)1 b)3 c)4

guys plz answer fast ...
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Answer 1

Answer:

3

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.