percentages

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Woozler: Senior | Next Rank: 100 Posts; Posts: 43; Joined: Sat Nov 06, 2010 12:04 pm

by Woozler » Mon Dec 13, 2010 10:23 am

A manufacturer produced x percent more video cameras in 1994 than in 1993, and y percent more video cameras in 1995 than in 1994. If the manufacturer produced 1000 video cameras in 1993, how many video cameras did the manufacturer produce in 1995?

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

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Source: Beat The GMAT — Data Sufficiency | Mon Dec 13, 2010 10:23 am

clock60: Legendary Member; Posts: 759; Joined: Mon Apr 26, 2010 10:15 amFollowed by: 3 members; Thanked: 85 times

by clock60 » Mon Dec 13, 2010 11:15 am

Two great math masters, annihilate this problem from the bottom up
https://www.beatthegmat.com/gmatprep-vid ... 69358.html

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