Absolute value of m

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Absolute value of m

by kushal.adhia » Fri Nov 05, 2010 1:59 am
If |m/5| > 1, then which of the following must be true?

A. m>5
B. m<5
C. m=5
D. m not equal to 5
E. m<-5

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by selango » Fri Nov 05, 2010 3:09 am
|m/5|>1

|m|/5>1

|m|>5

-->m>5 or m<-5

A and E are true.

The question asks which must be true.

m!=5

Pick D
Last edited by selango on Fri Nov 05, 2010 5:17 am, edited 1 time in total.
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by kushal.adhia » Fri Nov 05, 2010 4:02 am
@selango

i thought gmat questions had only one correct answer??? :D

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by GMATGuruNY » Fri Nov 05, 2010 4:16 am
kushal.adhia wrote:If |m/5| > 1, then which of the following must be true?

A. m>5
B. m<5
C. m=5
D. m not equal to 5
E. m<-5
One approach is to pick values. Our goal is choose values that will show that the answer choices don't have to be true. We can use only values that satisfy the condition given: |m/5| > 1.

m = 6 works, because |6/5| > 1.
Eliminate B (because 6<5 isn't true).
Eliminate C (because 6=5 isn't true).
Eliminate E (because 6<-5 isn't true).

m=-6 works, because |-6/5| > 1.
Eliminate A (because -6>5 isn't true).

The correct answer is D.
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by selango » Fri Nov 05, 2010 5:18 am
kushal.adhia wrote:@selango

i thought gmat questions had only one correct answer??? :D
Sorry..I missed it..Edited.
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by sanjeevsinha01 » Tue Nov 09, 2010 2:47 am
Gmatguru,
why E is wrong . any value less then -5 (-6,-7,-8 etc .. )will give the desire ans .

Please correct me .

GMATGuruNY wrote:
kushal.adhia wrote:If |m/5| > 1, then which of the following must be true?

A. m>5
B. m<5
C. m=5
D. m not equal to 5
E. m<-5
One approach is to pick values. Our goal is choose values that will show that the answer choices don't have to be true. We can use only values that satisfy the condition given: |m/5| > 1.

m = 6 works, because |6/5| > 1.
Eliminate B (because 6<5 isn't true).
Eliminate C (because 6=5 isn't true).
Eliminate E (because 6<-5 isn't true).

m=-6 works, because |-6/5| > 1.
Eliminate A (because -6>5 isn't true).

The correct answer is D.
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by selango » Tue Nov 09, 2010 3:39 am
sanjeevsinha01 wrote:Gmatguru,
why E is wrong . any value less then -5 (-6,-7,-8 etc .. )will give the desire ans .

Please correct me .

GMATGuruNY wrote:
kushal.adhia wrote:If |m/5| > 1, then which of the following must be true?

A. m>5
B. m<5
C. m=5
D. m not equal to 5
E. m<-5
One approach is to pick values. Our goal is choose values that will show that the answer choices don't have to be true. We can use only values that satisfy the condition given: |m/5| > 1.

m = 6 works, because |6/5| > 1.
Eliminate B (because 6<5 isn't true).
Eliminate C (because 6=5 isn't true).
Eliminate E (because 6<-5 isn't true).

m=-6 works, because |-6/5| > 1.
Eliminate A (because -6>5 isn't true).

The correct answer is D.
Note that m>5 or m<-5

We don't the value of m.So E is not true.
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