Answer:
93 is also divisible by 3 (true).
Step-by-step explanation:
Given : 93 divisible by 3.
To find : Is 93 divisible by 3 . True or false.
Solution : We have given  93 divisible by 3.
By the divisibility rule:
If the sum of the digit of a given number is divisible by 3  then the given number must be divisible by 3 .
Example : 81 
8+1 =9 that is divisibility by 3 so the 81 is also divisible by 3.
Now , 93 = 9+3 =12.
As we know 12 is divisible by 3. 
So , 93 is also divisible by 3.
Therefore, 93 is also divisible by 3 (true).