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pradeepkaushal9518: Legendary Member; Posts: 1309; Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members; Thanked: 33 times

by pradeepkaushal9518 » Fri Oct 01, 2010 12:47 am

What percentage of the population of town X was born in the town?

75 percent of the female population was born in the town.
50 percent of the male population was born in the town.

A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D EACH statement ALONE is sufficient.
E Statements (1) and (2) TOGETHER are NOT sufficient.

A SMALL TOWN GUY

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Source: Beat The GMAT — Data Sufficiency | Fri Oct 01, 2010 12:47 am

kvcpk: Legendary Member; Posts: 1893; Joined: Sun May 30, 2010 11:48 pmFollowed by: 7 members; Thanked: 215 times

by kvcpk » Fri Oct 01, 2010 12:56 am

pradeepkaushal9518 wrote:What percentage of the population of town X was born in the town?

75 percent of the female population was born in the town.
50 percent of the male population was born in the town.

75 percent of the female population was born in the town.
INSUFF

50 percent of the male population was born in the town.
INSUFF

Combining:
Population = M + F
Male population born in town = M/2
Female population born in town = 3F/4
Hence total population born in town = M/2 + 3F/4

Percentage = (M/2 + 3F/4)/(M+F) * 100
this cannot be calculated since we do not know M,F values or any ratio between M and F

Hence INSUFF

pick E.

Hope this helps!!

"Once you start working on something,
don't be afraid of failure and don't abandon it.
People who work sincerely are the happiest."
Chanakya quotes (Indian politician, strategist and writer, 350 BC-275BC)

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sumit.sinha: Senior | Next Rank: 100 Posts; Posts: 82; Joined: Sat Aug 21, 2010 8:18 am; Location: India; Thanked: 5 times

by sumit.sinha » Fri Oct 01, 2010 5:24 am

pradeepkaushal9518 wrote:What percentage of the population of town X was born in the town?

75 percent of the female population was born in the town.
50 percent of the male population was born in the town.

A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D EACH statement ALONE is sufficient.
E Statements (1) and (2) TOGETHER are NOT sufficient.

IMO E

Cheers,
Sumit

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