Question

which one of the following is divisible by 3 A. 12345 B. 24742 C. 20903​

Answer 1

Only A

Add all the digits and if the final answer is divisible by 3 then the whole number is

Answer 2

Answer:

add all the numbers and if the sum of all the numbers is divisible by 3 then the whole number will be divisible by 3

So , option A is divisible by 3