1.

Which of the following statement is sufficient to answer the question?Find the values of x, y, z from the given statements.Statements:I: x + y = 12 : x + z = 4II: x - y = 6

A. Only II is sufficient while I is not
B. Neither I nor II is sufficient
C. Both I and II are sufficient
D. Only I is sufficient while II is not
Answer» D. Only I is sufficient while II is not


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