
MARK
a)if the question can be answered with the help of I alone.
b)if the question can be answered with the help of II alone.
c)if the question can be answered with the help of I and II together but neither alone.
d)if more data is required.
Who is the second most in weight between X,Y, Z?
I. Difference between X and Z ‘s weight = 10kg.
II. Difference between Y and Z ‘s weight = 5kg.
