DS functions problem

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

ern5231: Master | Next Rank: 500 Posts; Posts: 226; Joined: Sun Aug 09, 2009 4:34 am

by ern5231 » Sun Aug 09, 2009 4:40 am

If f(n)=k/n then how much is f(3)?
(1) F(12) = ½
(2) F(root 6) = root 6

Source: Beat The GMAT — Data Sufficiency | Sun Aug 09, 2009 4:40 am

tohellandback: Legendary Member; Posts: 752; Joined: Sun May 17, 2009 11:04 pm; Location: Tokyo; Thanked: 81 times; GMAT Score:680

by tohellandback » Mon Aug 10, 2009 10:14 pm

IMO D

1) F(12) = ½
k/12= 1/2
k=6
SUFFICIENT

2)F(root 6) = root 6
k/root 6= root 6
k=6

SUFFICIENT

The powers of two are bloody impolite!!

• Page 1 of 1