Question

When any natural number is divided by 10, what is the sum of all possible remainders?.... Please also explain the meaning of the question.

Answer 1

The meaning of the question is that,any natural number take N devided by 10 may have remunder.
eg: N=21
then, 21/10= 2 having reminder 1.
question is that sum of all reminders when natural number is devided by 10.

Ans: When any number is divided by 10 the remainder can be any of the number from 0 to 9
so the sum of all possible remainders is
0+1+2+3+4+5+6+7+8+9=45