What is the smallest no. that should be added to 31110 to make it exactly divisible by 9?  Options: A) 1 B) 3 C) 5 D) 6 E) 9
If a number is divisible by 9, the sum of its digits must be a multiple of 9.   Here, 3+1+1+1+0=6, the next multiple of 9 is 9.   3 must be added to 31110 to make it divisible by 9   3
<result>B</result>
What is the smallest no. that should be added to 31110 to make it exactly divisible by 9?