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If a question speacifies that A is an even, can we not assume it's an integer? I did not know that decimals like 0.2, 0.4 etc can be considered even. This is based on one of the questions on the challanges(22, Question 22). In that case, what is a 2.5 - even or odd?
Cool Stuff FIG. You are right, there is always something new to learn.
I don't remember seeing any GMAT problems that question eveness/oddness for decimals. On question 22 in the challenge (if I am looking at the right one), talks about more considering decimals if you are not told that the number is an integer.