OG 12 DS

BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

This topic has expert replies

Post new topic Post Reply

Previous Topic Next Topic

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

OG 12 DS

by pradeepkaushal9518 » Mon Apr 26, 2010 10:22 pm

if p1 and p2 are the populations and r1 and r2 are the numbers of representatives of district 1 and 2 respectively, the ratio of the population to the number of representatives is greater for which of the two districts?

1.p1>p2
2.r2>r1

plz explain

Quote

Source: Beat The GMAT — Data Sufficiency | Mon Apr 26, 2010 10:22 pm

liferocks: Legendary Member; Posts: 576; Joined: Sat Mar 13, 2010 8:31 pm; Thanked: 97 times; Followed by:1 members

by liferocks » Mon Apr 26, 2010 10:52 pm

we need the whether p1/r1>p2/r2 or p1/r1<p2/r2

clearly either of the statements is not sufficient

together we get p1r2>p2r1
since both r1 and r2 +ve, dividing each side by r1r2 we get
p1/r1>p2/r2

hence ans C
what is OA