Is the product of $a$ and $b$ equal to $1?$

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VJesus12: Legendary Member; Posts: 2276; Joined: Sat Oct 14, 2017 6:10 amFollowed by: 3 members

by VJesus12 » Fri Dec 10, 2021 8:59 am

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Is the product of $a$ and $b$ equal to $1?$

(1) $aba=a$

(2) $bab=b$

Answer: E

Source: GMAT Club Tests

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Source: Beat The GMAT — Data Sufficiency | Fri Dec 10, 2021 8:59 am

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