E New tab score game a1.pdf file:///C/u Ostuff/a1.pdf 3. Which of the following conditions are necessary, and which conditions are sufficient for the natural number n to be divisible by 6. The natural numbers are N (0,1,2,...,) (a) n is divisible by 3 (b) n is divisible by 9 (c) n is divisible by 12 (d) n- 24 (e) n2 is divisible by 3 (f) n is even and divisible by;3 4. A set of propositions is consistent if there is an assignment of truth values to each of the variables in the propositions that makes each proposition true. Is the following set of propositions consistent? If the file system is not locked, then new messages will be queued If the file system is not locked, then the system is functioning normally, and conversely If new messages are not queued, then they will be sent to the message buffer If the file system is not locked, then new messages will be sent to the message buffer New messages will not be sent to the message buffer O Type here to search ENG 5:07 PM US 2018-09-16 3