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Is z even? (1) 5z is even. (2) 3z is even

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Is z even?
(1) 5z is even.
(2) 3z is even.

4 Answers

This is how DS plays with you! What otherwise seems a child's play is actually a silent killer!
answered Jun 19, 2016 by Beginner (1 point)
Z should be even. Because odd*even is even
answered Jun 19, 2016 by Beginner (1 point)
z can also be a fraction
2/5 or 2/3 ; which makes 1 & 2 alone insufficient. hence combining both shall give a concrete answer.
answered Jun 19, 2016 by Associate (110 points)
Nitesh Raj Bofua Bruno RamMohan Reddy Gunapati- You are not considering several cases.Z could be of the form 2k/5 or 2k/3 depending on which statement you chose. With this hint in mind, please attempt the problem again
answered Jun 19, 2016 by Student (43 points)
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