Price increased by $M\%$ from $1991$ to $1992$ and by $N\%$ from $1992$ to $1993.$ What was the percentage

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

by VJesus12 » Fri Mar 12, 2021 10:44 am

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Price increased by $M\%$ from $1991$ to $1992$ and by $N\%$ from $1992$ to $1993.$ What was the percentage increase in price from $1991$ to $1993?$

(1) $MN = 300$
(2) $100M + 100N + MN = 4300$

Answer: B

Source: GMAT Club Tests

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Source: Beat The GMAT — Data Sufficiency | Fri Mar 12, 2021 10:44 am

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