Question

If M is a number such that M÷5 gives a remainder of 1, then which of the following is the one's digit of M

Answer 1

Given,

If we divide M by 5 then we get a remainder of 1.

To find,

Probable one's digit of M.

Solution,

According to the divisible by 5 law, the number which is divisible by 5 has zero or five as it's one's digit.

For example,

15 which has a one's digit 5, is divisible by 5.

20 which has a one's digit of 0, is divisible by 5.

If there is 1 as remainder, then we have to add 1 with the probable one's digit of a Divisible by 5 number.

Probable one's digit

= (5+1)

= 6

Or,

= (0+1)

= 1

Verification :

• 26 is a number with one's digit 6, if we divide this by 5 then we will get 1 as remainder.
• 31 is a number with one's digit 1, if we divide this by 5 then we will get 1 as remainder.

Hence, one's digit will be either 6 or 1.

Answer 2

Answer:

Hope this is OK for you completely