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If a – c = 20, then what is the value of b?

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If a – c = 20, then what is the value of b?  [#permalink]

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New post 17 Jan 2019, 23:30
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A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

67% (00:33) correct 33% (01:26) wrong based on 14 sessions

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Image
If a – c = 20, then what is the value of b?

A 60
B 80
C 100
D 110
E 120


Spoiler: ::
Attachment:
2019-01-18_1128.png
2019-01-18_1128.png [ 7.32 KiB | Viewed 245 times ]
Spoiler: OA

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Re: If a – c = 20, then what is the value of b?  [#permalink]

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New post 18 Jan 2019, 06:03
Bunuel wrote:
Image
If a – c = 20, then what is the value of b?

A 60
B 80
C 100
D 110
E 120


Spoiler: ::
Attachment:
2019-01-18_1128.png


a+c= 180
a=c+20
a= 100 ; c= 80
b= a=100
IMO C
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Re: If a – c = 20, then what is the value of b?   [#permalink] 18 Jan 2019, 06:03
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