How much wallpaper is needed to cover the two largest walls of a narrow room that is $9$ feet high?

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BTGmoderatorLU: Moderator; Posts: 2547; Joined: Sun Oct 15, 2017 1:50 pmFollowed by: 6 members

by BTGmoderatorLU » Sun Sep 28, 2025 11:52 am

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How much wallpaper is needed to cover the two largest walls of a narrow room that is $9$ feet high?

1) The room is $10$ feet wide

2) The room is $24$ feet long

The OA is B

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Source: Beat The GMAT — Data Sufficiency | Sun Sep 28, 2025 11:52 am

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