i want to know how this rule works, and whats the name of it

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afnanmoh: Newbie | Next Rank: 10 Posts; Posts: 9; Joined: Fri Jan 06, 2012 1:20 am

by afnanmoh » Sat Jan 14, 2012 3:16 am

hello,

i studied from my notebook, and i saw this rule. I dont know how it works, or what's the name of it:

(x)+(x+1)+(x+2)= 18

Source: Beat The GMAT — Problem Solving | Sat Jan 14, 2012 3:16 am

Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pm; Location: Vancouver, BC; Thanked: 5254 times; Followed by:1268 members; GMAT Score:770

by Brent@GMATPrepNow » Sat Jan 14, 2012 8:41 am

afnanmoh wrote:hello,

i studied from my notebook, and i saw this rule. I dont know how it works, or what's the name of it:

(x)+(x+1)+(x+2)= 18

Sorry, it's hard to understand what your question is here. Can you please rephrase it?

Cheers,
Brent

Brent Hanneson - Creator of GMATPrepNow.com

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