value of y?

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frizo: Junior | Next Rank: 30 Posts; Posts: 29; Joined: Thu Jan 22, 2009 10:19 am; Thanked: 1 times

by frizo » Mon Feb 16, 2009 11:00 am

What is the value of y?

(1) When y is multiplied by 6, the result is between 40 and 45.
(2) When y is multiplied by 3, the result is between 19 and 23.

E

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Source: Beat The GMAT — Data Sufficiency | Mon Feb 16, 2009 11:00 am

earth@work: Master | Next Rank: 500 Posts; Posts: 248; Joined: Mon Aug 11, 2008 9:51 am; Thanked: 13 times

by earth@work » Mon Feb 16, 2009 11:14 am

(1) When y is multiplied by 6, the result is between 40 and 45.
this gives us value of y from 6.33<y<7.66 ...insuff
(2) When y is multiplied by 3, the result is between 19 and 23.
6.66<y<7.5..... insuff
(1) + (2) give 6.66<y<7.5 ....still insuff
Ans E

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Bidisha_800: Senior | Next Rank: 100 Posts; Posts: 44; Joined: Sun Feb 15, 2009 7:37 pmFollowed by: 1 member; Thanked: 3 times

by Bidisha_800 » Mon Feb 16, 2009 11:15 am

it is NOT said that y is integer ..so let's assume y= 6.5, 6.6 or 7

all of these satisfy (1) and (2)
so (E)

GMATPowerPrep Test1= 740
GMATPowerPrep Test2= 760
Kaplan Diagnostic Test= 700
Kaplan Test1=600
Kalplan Test2=670
Kalplan Test3=570

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