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awilhelm: Master | Next Rank: 500 Posts; Posts: 117; Joined: Fri Oct 17, 2008 7:41 am

by awilhelm » Tue Dec 16, 2008 8:23 pm

A manufacturer produced x percent more video cameras in 1994 than in 1993 and y percent more video cameras in 10995 than in 1994. If the manufacturer produced 1,000 video cameras in 1993, how many did he produce in 1995?

1) xy = 20
2) x + y + xy/100 = 9.2

Any ideas?

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Source: Beat The GMAT — Data Sufficiency | Tue Dec 16, 2008 8:23 pm

cramya: Legendary Member; Posts: 2467; Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members; Thanked: 331 times

by cramya » Tue Dec 16, 2008 8:51 pm

Parallel chase (I call him the PC) has provided a good explanation here!

https://www.beatthegmat.com/video-cameras-t16975.html

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