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If \(c\) and \(d\) are integers, is \(c - 3d\) even?

M7MBA: Moderator; Posts: 2058; Joined: Sun Oct 29, 2017 4:24 am; Thanked: 1 times; Followed by:5 members

by M7MBA » Thu Oct 01, 2020 6:31 am

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If \(c\) and \(d\) are integers, is \(c - 3d\) even?

(1) \(c\) and \(d\) are odd.
(2) \(c - 2d\) is odd.

Answer: A

Source: Manhattan GMAT

Source: Beat The GMAT — Data Sufficiency | Thu Oct 01, 2020 6:31 am

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