The numbers from 1 to 29 are written side by side as follows : 1234567891011121314.....2829 If this number is divided by 9, then what is the remainder ?

Answer: Option C

Sum of digits of numbers from 1 to 10 = 46
Sum of digits of numbers from 11 to 20 = 56
Sum of digits of numbers from 21 to 29 = 63
Sum of digits of the given number = 46 + 56 + 63 = 165
So, the required remainder is the remainder obtained on dividing 165 by 9, which is 3