Correct Answer - Option 4 : 9813
Concept used:
By the divisibility rule of 3, we know that, a number is divisible by 3 if sum of all the digits of that number is divisible by 3.
Calculation:
Option 1 has sum of digits = 13, which is not divisible by 3
Option 2 has sum of digits = 23, which is not divisible by 3
Option 3 has sum of digits = 16, which is not divisible by 3
Option 4 has sum of digits = 21, which is divisible by 3
Thus, option 4 is right.
