Discussion

79.           Column A           Column B
  x The sum of the three numbers in each diagonal is the same. z
(A)Column A is larger
(B)...
(C)...
(D)...
(E)...
(F)...
*This question is included in Nova Math - Problem Set G: Quantitative Comparisons, question #79

The solution is

Posted: 06/17/2014 18:22
Can x or z be negative? If that's the case, d would be the answer.
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Admin
Posted: 06/17/2014 23:20
Hi Perrie,

The equation x = z + 4 implies that x is 4 units larger than z.

It does not matter whether x and z are positive or negative.

For example, if x = -2, then z must be -6. Since -2 > -6, x is greater than z.

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