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

Redeem

int

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 22
Joined: Thu Jul 02, 2009 9:55 pm
Thanked: 2 times

int

by Rajani » Mon Aug 24, 2009 2:32 am
if a, b and c are integers, whats the value of a?

a. (a-7)(b-7)(c-7)=0
b. bc = 18
Top
Source: — Data Sufficiency |
Senior | Next Rank: 100 Posts
Posts: 65
Joined: Fri Jul 24, 2009 11:47 am
Thanked: 5 times

by rish » Mon Aug 24, 2009 3:05 am
C

1)a=7 or b=7 or c=7 , so INSUF

2)bc=18 , INSUFF

from 1&2, b!=7 and c!=7 , hence a=7 ..SUFF
Top
Senior | Next Rank: 100 Posts
Posts: 75
Joined: Thu Aug 20, 2009 11:55 am
Location: vancouver, B.C
GMAT Score:640

Re: int

by hpgmat » Mon Aug 24, 2009 3:16 am
Rajani wrote:if a, b and c are integers, whats the value of a?

a. (a-7)(b-7)(c-7)=0
b. bc = 18
both statements together are suff.

from a .... > (A-7)= 0 OR (B-7)=0 OR (c-7)=0 MEANING A=7 OR B=7 OR C=7. SINCE BC=18 AND 7 IS NOT A FACTOR OF 18, NEITHER B NOR C IS 7 . MEANING A MUST BE 7.
Will Win
Top
Post new topic Post Reply
• Page 1 of 1