Hi winionhi,

This question can be solved by TESTing THE ANSWERS.

We're given a couple of facts to work with:

1) Anthony's current age IS 6 times what Kaira's age WAS when Anthony was Kaira's (current) age.

2) The sum of their CURRENT ages is 57.

We're asked for Kaira's current age.

Let's TEST Answer B: 19

IF....

Kaira is 19

Anthony is 57 - 19 = 38

38 is "6 times" 6 1/3, which would be a strange way to refer to an age (so this is likely NOT the correct answer).

Eliminate Answer B.

Let's TEST Answer D: 21

IF....

Kaira is 21

Anthony is 57 - 21 = 36

36 is "6 times" 6

Anthony was 21 fifteen years ago; at that time, Kaira was 21 - 15 = 6

This is an exact match for what we were told, so this MUST be the answer.

Final Answer:

GMAT assassins aren't born, they're made,

Rich

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