Question

If the division N ÷ 2 leaves a remainder of 1, what might be the ones digit of N?

Answer 1

Solution:

A number which is divisible by 2 has even number in its ones place.

Since, the number N leaves 1 as the remainder when divided by 2, the last digit can be (0 + 1 = 1), (2 + 1 = 3), (4 + 1 = 5), (6 + 1 = 7), or (8 + 1 = 9)

So, the last digit or the ones digit of the number which leaves 1 as a remainder is 1, 3, 5, 7, 9.