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GMAT Prep : DS ( Ratio )

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by Skywalker » Sun Oct 03, 2010 10:35 am
The OA to the sum [spoiler]= C[/spoiler].

Have they used the following technique to come to the solution ....please let me know

Male + Female = Total Population --- (1)

.33M + .20F = .25 T --- (2)

From 1 & 2 ...we can substitute for F= T - M .....and so on !


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Source: — Data Sufficiency |

by narik11 » Sun Oct 03, 2010 10:47 am
Exactly. No doubt in that dude :lol:
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