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number properties

Expert replies
Source: — Data Sufficiency |

by Brent@GMATPrepNow » Fri Jan 13, 2012 8:33 am
sud21 wrote:If 56<x<66, where x is an integer. x=?
1). When x is divided by 2, the remainder is 1
2). x+1 is divisible by 3.
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Statement 1:
This tells us that x is odd
So, x could equal 57, 59, 61, 63 or 65
INSUFFICIENT

Statement 2:
x could equal 59, 62 or 65
INSUFFICIENT

Statements 1 & 2:
When we combine both outcomes, we find that x could equal 59 or 65
INSUFFICIENT

So, the answer = E

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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