i think there is a small flaw in this DS....OA after some attempts
If the sum of the digits of the positive two-digit number x is 4, what is the value of x?
(1) x is odd.
(2) Twice the value of x is less than 44.
mgmat DS
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The possible values for 2 digit numbers which the sum of its positive digits is 4 are:
13
22
31
(1) Tells us that the number is odd, so it can be either 13 or 31. Insuff
(2) Tells us that xx*2 is less than 44, which only leaves 13 a possible alternative. 2 is sufficient alone. So B
13
22
31
(1) Tells us that the number is odd, so it can be either 13 or 31. Insuff
(2) Tells us that xx*2 is less than 44, which only leaves 13 a possible alternative. 2 is sufficient alone. So B