GMATD11 wrote:
45) What is the value of the 2digits integer x?
a) The sum of the digits is 3.
b) x is divisible by 3.
a) let y and z are two digits
then y+z=3
Not Sufficient
b) if x is divisible by 3
x can be 3,6,9,12,15,18,21,24,27,30...
Not Sufficient
Combining a and b
x=30 or it can be 12 ,21 ...
Ans e
We have 3 options: 12,21,30
1. All options are divisible by 3. We cannot be sure. Insufficient.
2. x is divisible by 3: This we can infer from statement 1 only. No real need for this statement. Anyways, all 3 options are divisible by 3. Insufficient.
1 & 2 also are insufficient as they do not give any other information about the numbers so that we can differentiate between them.
answer E.
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90% (00:30) correct 
