Question

how can you tell if a number is divisible by 3? a. the first two digits are divisible by 3. b. the sum of the digits of the number is a multiple of 3. c. the number ends in an odd digit. d. the last number is 3.

Answer 1

A number is only divisible by three if the sum of its digits is a multiple of 3. i.e it is divisible by 3