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smithpa2: Junior | Next Rank: 30 Posts; Posts: 18; Joined: Tue Aug 12, 2008 5:47 am; Thanked: 2 times

by smithpa2 » Fri Sep 26, 2008 2:35 pm

This problem is fairly simple and I came to the right answer, I just can't remember the underlying reason of how I did it. Come someone shed some light on this please?

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Source: Beat The GMAT — Problem Solving | Fri Sep 26, 2008 2:35 pm

Morgoth: Master | Next Rank: 500 Posts; Posts: 316; Joined: Mon Sep 22, 2008 12:04 amFollowed by: 1 member; Thanked: 36 times

by Morgoth » Fri Sep 26, 2008 3:07 pm

1 cubic meter = 800 kgs

1 cubic meter = 10^6
1kg = 10^3

10^6 cubic centimeters = 800 kgs

10^6 = 800 * 10^3

10^3 = 800

10^3/800 = 1 gram

10/8 = 1 gram

1.25 = 1 gram

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