II. True or False. Write T if the statement is true and F if not. 11. A number is divisible by 6 if the number is divisible by 2 and 3 and a multiple of both 2 and 3. 12. To test the divisibility rule of 11, get the sum of alternating digits, then subtract the sum of all other digits and the answer should be 0 or 11. 13. A number is divisible by 3 if the sum of the digits is divisible by 3. 14. If the sum of its digit is divisible by 9. And it's a multiple of 9 15. Number divisible by both 3 and 4 are also divisible by 12​