Is the integer \(X\) between 20 and 26 inclusive?

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swerve: Legendary Member; Posts: 2499; Joined: Sun Oct 29, 2017 2:04 pm; Followed by:6 members

by swerve » Sat Nov 02, 2019 11:42 am

Is the integer \(X\) between 20 and 26 inclusive?

1) \(X\) is multiple of 9.
2) \(X=18\).

The OA is D

Source: Manhattan Prep

Source: Beat The GMAT — Data Sufficiency | Sat Nov 02, 2019 11:42 am

joao_cardoso123: Junior | Next Rank: 30 Posts; Posts: 10; Joined: Sun Nov 10, 2019 7:32 am

by joao_cardoso123 » Sun Nov 10, 2019 9:20 am

(1) doesn't answer the question because X can be 9 18 27 36 and so on
(2) by itself answers the question

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