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|−4|(|−20| − |5|) =

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Math Expert
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Joined: 02 Sep 2009
Posts: 49968
|−4|(|−20| − |5|) =  [#permalink]

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New post 30 Jul 2018, 06:24
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

93% (00:23) correct 7% (00:39) wrong based on 242 sessions

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Joined: 30 Jan 2015
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Re: |−4|(|−20| − |5|) =  [#permalink]

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New post 30 Jul 2018, 06:32
1
Bunuel wrote:
\(|−4|(|−20| − |5|) =\)


= |−4|(|−20| − |5|)
= |−4|(20 − 5)
= |−4|(15)
= 4 * 15
= 60

Hence, C.
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Re: |−4|(|−20| − |5|) =  [#permalink]

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New post 30 Jul 2018, 06:33
|−4|(|−20|−|5|)

=> 4(20 - 5) = 4 * 15 = 60

Hence option C
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Re: |−4|(|−20| − |5|) =  [#permalink]

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New post 30 Jul 2018, 06:33
|−4|(|−20|−|5|)

When we take the absolute value of a number, we get non-negative number(positive or zero).

|−x|= x

|−4|(20-5)

(4)*15=60
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Re: |−4|(|−20| − |5|) =  [#permalink]

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New post 30 Jul 2018, 06:43
Bunuel wrote:
\(|−4|(|−20| − |5|) =\)

A. −100
B. −60
C. 60
D. 75
E. 100


NEW question from GMAT® Quantitative Review 2019


(PS04362)


OA:C
\(|−4|(|−20| − |5|) =|−4|(20-5) =4(15)=60\)
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Re: |−4|(|−20| − |5|) =  [#permalink]

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New post 01 Sep 2018, 00:04
Why cannot |5| be considered as both +5 and -5?
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Re: |−4|(|−20| − |5|) =  [#permalink]

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New post 01 Sep 2018, 00:41
101mba101 wrote:
Why cannot |5| be considered as both +5 and -5?
|a| is always equal to a or 0

A value of modulus function is never negative.

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Re: |−4|(|−20| − |5|) = &nbs [#permalink] 01 Sep 2018, 00:41
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