Given an instance of the STUDENTS relation as shown as below
For $(StudentName, StudentAge)$ to be a key for this instance, the value $X$ should NOT be equal to______.
Pronomita Dey 1
value X should NOT be equal to 19 is correct answer.
if u say why not 18 ? then i ask u why not 17 ?
yes sir TRUE... working on it :). But this...