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If 2x + 3y = 11 and 3x + 2y = 9, then x + y =

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If 2x + 3y = 11 and 3x + 2y = 9, then x + y =  [#permalink]

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New post Updated on: 23 Jul 2019, 05:36
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

96% (01:06) correct 4% (03:48) wrong based on 25 sessions

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Originally posted by Bunuel on 07 Apr 2019, 21:50.
Last edited by SajjadAhmad on 23 Jul 2019, 05:36, edited 1 time in total.
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Re: If 2x + 3y = 11 and 3x + 2y = 9, then x + y =  [#permalink]

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New post 08 Apr 2019, 00:18
Bunuel wrote:
If 2x + 3y = 11 and 3x + 2y = 9, then x + y =

(A) 4

(B) 7

(C) 8

(D) 9

(E) 11


solve expression 2x + 3y = 11 and 3x + 2y = 9
x= 1 and y = 3
IMO A ; 4 x+y
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Re: If 2x + 3y = 11 and 3x + 2y = 9, then x + y =  [#permalink]

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New post 08 Apr 2019, 09:51
1
Bunuel wrote:
If 2x + 3y = 11 and 3x + 2y = 9, then x + y =

(A) 4

(B) 7

(C) 8

(D) 9

(E) 11


2x + 3y + 3x + 2y = 11 + 9 = 20
5 (x + y) = 20
x + y = 4

The answer is (A)!
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Re: If 2x + 3y = 11 and 3x + 2y = 9, then x + y =  [#permalink]

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New post 08 Apr 2019, 10:56
if 2x+3y = 11 then 2x+2y < 11 thus x+ y <5.5 . Answer is A
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Re: If 2x + 3y = 11 and 3x + 2y = 9, then x + y =  [#permalink]

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New post 10 Apr 2019, 17:47
Bunuel wrote:
If 2x + 3y = 11 and 3x + 2y = 9, then x + y =

(A) 4

(B) 7

(C) 8

(D) 9

(E) 11


Adding the equations together we have:

5x + 5y = 20

Dividing by 5 we have:

x + y = 4

Answer: A
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Re: If 2x + 3y = 11 and 3x + 2y = 9, then x + y =   [#permalink] 10 Apr 2019, 17:47
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